Réitigh [15-(x^{4}-frac{x^{4}+1}{x^{2}+1})*frac{(x^{2}+1)(x-4)}{x^7+6x^6-x-6}]:x^2+29x+78/3x^2+12x-36=

$$[ 15 - ( x ^ { 4 } - \frac { x ^ { 4 } + 1 } { x ^ { 2 } + 1 } ) \cdot \frac { ( x ^ { 2 } + 1 ) ( x - 4 ) } { x ^ { 7 } + 6 x ^ { 6 } - x - 6 } ] : \frac { x ^ { 2 } + 29 x + 78 } { 3 x ^ { 2 } + 12 x - 36 } =$$

Luacháil

$$\frac{6\left(x-2\right)\left(7x+47\right)}{\left(x+3\right)\left(x+26\right)}$$

Céimeanna gearra réitigh

Chun cothromóidí a shuimiú nó a dhealú, fairsingigh iad chun a n-ainmneoirí a mheaitseáil. Méadaigh x^{4} faoi \frac{x^{2}+1}{x^{2}+1}.

$$\frac{15-\left(\frac{x^{4}\left(x^{2}+1\right)}{x^{2}+1}-\frac{x^{4}+1}{x^{2}+1}\right)\times \frac{\left(x^{2}+1\right)\left(x-4\right)}{x^{7}+6x^{6}-x-6}}{\frac{x^{2}+29x+78}{3x^{2}+12x-36}}$$

Tá an t-ainmneoir céanna ag \frac{x^{4}\left(x^{2}+1\right)}{x^{2}+1} agus \frac{x^{4}+1}{x^{2}+1} agus, mar sin, is féidir iad a dhealú trína n-uimhreoirí a dhealú.

$$\frac{15-\frac{x^{4}\left(x^{2}+1\right)-\left(x^{4}+1\right)}{x^{2}+1}\times \frac{\left(x^{2}+1\right)\left(x-4\right)}{x^{7}+6x^{6}-x-6}}{\frac{x^{2}+29x+78}{3x^{2}+12x-36}}$$

Déan iolrúcháin in x^{4}\left(x^{2}+1\right)-\left(x^{4}+1\right).

$$\frac{15-\frac{x^{6}+x^{4}-x^{4}-1}{x^{2}+1}\times \frac{\left(x^{2}+1\right)\left(x-4\right)}{x^{7}+6x^{6}-x-6}}{\frac{x^{2}+29x+78}{3x^{2}+12x-36}}$$

Cumaisc téarmaí comhchosúla in: x^{6}+x^{4}-x^{4}-1.

$$\frac{15-\frac{x^{6}-1}{x^{2}+1}\times \frac{\left(x^{2}+1\right)\left(x-4\right)}{x^{7}+6x^{6}-x-6}}{\frac{x^{2}+29x+78}{3x^{2}+12x-36}}$$

Méadaigh \frac{x^{6}-1}{x^{2}+1} faoi \frac{\left(x^{2}+1\right)\left(x-4\right)}{x^{7}+6x^{6}-x-6} tríd an uimhreoir a mhéadú faoin uimhreoir agus an t-ainmneoir a mhéadú faoin ainmneoir.

$$\frac{15-\frac{\left(x^{6}-1\right)\left(x^{2}+1\right)\left(x-4\right)}{\left(x^{2}+1\right)\left(x^{7}+6x^{6}-x-6\right)}}{\frac{x^{2}+29x+78}{3x^{2}+12x-36}}$$

Cealaigh x^{2}+1 mar uimhreoir agus ainmneoir.

$$\frac{15-\frac{\left(x-4\right)\left(x^{6}-1\right)}{x^{7}+6x^{6}-x-6}}{\frac{x^{2}+29x+78}{3x^{2}+12x-36}}$$

Fachtóirigh na sloinn nach bhfuil fachtóirithe cheana in \frac{\left(x-4\right)\left(x^{6}-1\right)}{x^{7}+6x^{6}-x-6}.

$$\frac{15-\frac{\left(x-4\right)\left(x-1\right)\left(x+1\right)\left(x^{2}+x+1\right)\left(x^{2}-x+1\right)}{\left(x-1\right)\left(x+1\right)\left(x+6\right)\left(x^{2}+x+1\right)\left(x^{2}-x+1\right)}}{\frac{x^{2}+29x+78}{3x^{2}+12x-36}}$$

Cealaigh \left(x-1\right)\left(x+1\right)\left(x^{2}+x+1\right)\left(x^{2}-x+1\right) mar uimhreoir agus ainmneoir.

$$\frac{15-\frac{x-4}{x+6}}{\frac{x^{2}+29x+78}{3x^{2}+12x-36}}$$

Chun cothromóidí a shuimiú nó a dhealú, fairsingigh iad chun a n-ainmneoirí a mheaitseáil. Méadaigh 15 faoi \frac{x+6}{x+6}.

$$\frac{\frac{15\left(x+6\right)}{x+6}-\frac{x-4}{x+6}}{\frac{x^{2}+29x+78}{3x^{2}+12x-36}}$$

Tá an t-ainmneoir céanna ag \frac{15\left(x+6\right)}{x+6} agus \frac{x-4}{x+6} agus, mar sin, is féidir iad a dhealú trína n-uimhreoirí a dhealú.

$$\frac{\frac{15\left(x+6\right)-\left(x-4\right)}{x+6}}{\frac{x^{2}+29x+78}{3x^{2}+12x-36}}$$

Déan iolrúcháin in 15\left(x+6\right)-\left(x-4\right).

$$\frac{\frac{15x+90-x+4}{x+6}}{\frac{x^{2}+29x+78}{3x^{2}+12x-36}}$$

Cumaisc téarmaí comhchosúla in: 15x+90-x+4.

$$\frac{\frac{14x+94}{x+6}}{\frac{x^{2}+29x+78}{3x^{2}+12x-36}}$$

Roinn \frac{14x+94}{x+6} faoi \frac{x^{2}+29x+78}{3x^{2}+12x-36} trí \frac{14x+94}{x+6} a mhéadú faoi dheilín \frac{x^{2}+29x+78}{3x^{2}+12x-36}.

$$\frac{\left(14x+94\right)\left(3x^{2}+12x-36\right)}{\left(x+6\right)\left(x^{2}+29x+78\right)}$$

Fachtóirigh na sloinn nach bhfuil fachtóirithe cheana.

$$\frac{2\times 3\left(x-2\right)\left(x+6\right)\left(7x+47\right)}{\left(x+3\right)\left(x+6\right)\left(x+26\right)}$$

Cealaigh x+6 mar uimhreoir agus ainmneoir.

$$\frac{2\times 3\left(x-2\right)\left(7x+47\right)}{\left(x+3\right)\left(x+26\right)}$$

Fairsingigh an slonn.

$$\frac{42x^{2}+198x-564}{x^{2}+29x+78}$$

Fairsingigh

$$\frac{6\left(7x^{2}+33x-94\right)}{x^{2}+29x+78}$$

Céimeanna gearra réitigh

Chun cothromóidí a shuimiú nó a dhealú, fairsingigh iad chun a n-ainmneoirí a mheaitseáil. Méadaigh x^{4} faoi \frac{x^{2}+1}{x^{2}+1}.

$$\frac{15-\left(\frac{x^{4}\left(x^{2}+1\right)}{x^{2}+1}-\frac{x^{4}+1}{x^{2}+1}\right)\times \frac{\left(x^{2}+1\right)\left(x-4\right)}{x^{7}+6x^{6}-x-6}}{\frac{x^{2}+29x+78}{3x^{2}+12x-36}}$$

Tá an t-ainmneoir céanna ag \frac{x^{4}\left(x^{2}+1\right)}{x^{2}+1} agus \frac{x^{4}+1}{x^{2}+1} agus, mar sin, is féidir iad a dhealú trína n-uimhreoirí a dhealú.

$$\frac{15-\frac{x^{4}\left(x^{2}+1\right)-\left(x^{4}+1\right)}{x^{2}+1}\times \frac{\left(x^{2}+1\right)\left(x-4\right)}{x^{7}+6x^{6}-x-6}}{\frac{x^{2}+29x+78}{3x^{2}+12x-36}}$$

Déan iolrúcháin in x^{4}\left(x^{2}+1\right)-\left(x^{4}+1\right).

$$\frac{15-\frac{x^{6}+x^{4}-x^{4}-1}{x^{2}+1}\times \frac{\left(x^{2}+1\right)\left(x-4\right)}{x^{7}+6x^{6}-x-6}}{\frac{x^{2}+29x+78}{3x^{2}+12x-36}}$$

Cumaisc téarmaí comhchosúla in: x^{6}+x^{4}-x^{4}-1.

$$\frac{15-\frac{x^{6}-1}{x^{2}+1}\times \frac{\left(x^{2}+1\right)\left(x-4\right)}{x^{7}+6x^{6}-x-6}}{\frac{x^{2}+29x+78}{3x^{2}+12x-36}}$$

Méadaigh \frac{x^{6}-1}{x^{2}+1} faoi \frac{\left(x^{2}+1\right)\left(x-4\right)}{x^{7}+6x^{6}-x-6} tríd an uimhreoir a mhéadú faoin uimhreoir agus an t-ainmneoir a mhéadú faoin ainmneoir.

$$\frac{15-\frac{\left(x^{6}-1\right)\left(x^{2}+1\right)\left(x-4\right)}{\left(x^{2}+1\right)\left(x^{7}+6x^{6}-x-6\right)}}{\frac{x^{2}+29x+78}{3x^{2}+12x-36}}$$

Cealaigh x^{2}+1 mar uimhreoir agus ainmneoir.

$$\frac{15-\frac{\left(x-4\right)\left(x^{6}-1\right)}{x^{7}+6x^{6}-x-6}}{\frac{x^{2}+29x+78}{3x^{2}+12x-36}}$$

Fachtóirigh na sloinn nach bhfuil fachtóirithe cheana in \frac{\left(x-4\right)\left(x^{6}-1\right)}{x^{7}+6x^{6}-x-6}.

$$\frac{15-\frac{\left(x-4\right)\left(x-1\right)\left(x+1\right)\left(x^{2}+x+1\right)\left(x^{2}-x+1\right)}{\left(x-1\right)\left(x+1\right)\left(x+6\right)\left(x^{2}+x+1\right)\left(x^{2}-x+1\right)}}{\frac{x^{2}+29x+78}{3x^{2}+12x-36}}$$

Cealaigh \left(x-1\right)\left(x+1\right)\left(x^{2}+x+1\right)\left(x^{2}-x+1\right) mar uimhreoir agus ainmneoir.

$$\frac{15-\frac{x-4}{x+6}}{\frac{x^{2}+29x+78}{3x^{2}+12x-36}}$$

Chun cothromóidí a shuimiú nó a dhealú, fairsingigh iad chun a n-ainmneoirí a mheaitseáil. Méadaigh 15 faoi \frac{x+6}{x+6}.

$$\frac{\frac{15\left(x+6\right)}{x+6}-\frac{x-4}{x+6}}{\frac{x^{2}+29x+78}{3x^{2}+12x-36}}$$

Tá an t-ainmneoir céanna ag \frac{15\left(x+6\right)}{x+6} agus \frac{x-4}{x+6} agus, mar sin, is féidir iad a dhealú trína n-uimhreoirí a dhealú.

$$\frac{\frac{15\left(x+6\right)-\left(x-4\right)}{x+6}}{\frac{x^{2}+29x+78}{3x^{2}+12x-36}}$$

Déan iolrúcháin in 15\left(x+6\right)-\left(x-4\right).

$$\frac{\frac{15x+90-x+4}{x+6}}{\frac{x^{2}+29x+78}{3x^{2}+12x-36}}$$

Cumaisc téarmaí comhchosúla in: 15x+90-x+4.

$$\frac{\frac{14x+94}{x+6}}{\frac{x^{2}+29x+78}{3x^{2}+12x-36}}$$

Roinn \frac{14x+94}{x+6} faoi \frac{x^{2}+29x+78}{3x^{2}+12x-36} trí \frac{14x+94}{x+6} a mhéadú faoi dheilín \frac{x^{2}+29x+78}{3x^{2}+12x-36}.

$$\frac{\left(14x+94\right)\left(3x^{2}+12x-36\right)}{\left(x+6\right)\left(x^{2}+29x+78\right)}$$

Fachtóirigh na sloinn nach bhfuil fachtóirithe cheana.

$$\frac{2\times 3\left(x-2\right)\left(x+6\right)\left(7x+47\right)}{\left(x+3\right)\left(x+6\right)\left(x+26\right)}$$

Cealaigh x+6 mar uimhreoir agus ainmneoir.

$$\frac{2\times 3\left(x-2\right)\left(7x+47\right)}{\left(x+3\right)\left(x+26\right)}$$

Fairsingigh an slonn.

$$\frac{42x^{2}+198x-564}{x^{2}+29x+78}$$