Luacháil
\frac{3\left(x-1\right)\left(x+3\right)}{\left(x+4\right)\left(x+9\right)}
Fairsingigh
\frac{3\left(x^{2}+2x-3\right)}{\left(x+4\right)\left(x+9\right)}
Graf
Roinn
Cóipeáladh go dtí an ghearrthaisce
\frac{4x\left(x+4\right)}{\left(x+4\right)\left(x+9\right)}-\frac{\left(x+1\right)\left(x+9\right)}{\left(x+4\right)\left(x+9\right)}
Chun cothromóidí a shuimiú nó a dhealú, fairsingigh iad chun a n-ainmneoirí a mheaitseáil. Is é an t-iolrach is lú coitianta de x+9 agus x+4 ná \left(x+4\right)\left(x+9\right). Méadaigh \frac{4x}{x+9} faoi \frac{x+4}{x+4}. Méadaigh \frac{x+1}{x+4} faoi \frac{x+9}{x+9}.
\frac{4x\left(x+4\right)-\left(x+1\right)\left(x+9\right)}{\left(x+4\right)\left(x+9\right)}
Tá an t-ainmneoir céanna ag \frac{4x\left(x+4\right)}{\left(x+4\right)\left(x+9\right)} agus \frac{\left(x+1\right)\left(x+9\right)}{\left(x+4\right)\left(x+9\right)} agus, mar sin, is féidir iad a dhealú trína n-uimhreoirí a dhealú.
\frac{4x^{2}+16x-x^{2}-9x-x-9}{\left(x+4\right)\left(x+9\right)}
Déan iolrúcháin in 4x\left(x+4\right)-\left(x+1\right)\left(x+9\right).
\frac{3x^{2}+6x-9}{\left(x+4\right)\left(x+9\right)}
Cumaisc téarmaí comhchosúla in: 4x^{2}+16x-x^{2}-9x-x-9.
\frac{3x^{2}+6x-9}{x^{2}+13x+36}
Fairsingigh \left(x+4\right)\left(x+9\right)
\frac{4x\left(x+4\right)}{\left(x+4\right)\left(x+9\right)}-\frac{\left(x+1\right)\left(x+9\right)}{\left(x+4\right)\left(x+9\right)}
Chun cothromóidí a shuimiú nó a dhealú, fairsingigh iad chun a n-ainmneoirí a mheaitseáil. Is é an t-iolrach is lú coitianta de x+9 agus x+4 ná \left(x+4\right)\left(x+9\right). Méadaigh \frac{4x}{x+9} faoi \frac{x+4}{x+4}. Méadaigh \frac{x+1}{x+4} faoi \frac{x+9}{x+9}.
\frac{4x\left(x+4\right)-\left(x+1\right)\left(x+9\right)}{\left(x+4\right)\left(x+9\right)}
Tá an t-ainmneoir céanna ag \frac{4x\left(x+4\right)}{\left(x+4\right)\left(x+9\right)} agus \frac{\left(x+1\right)\left(x+9\right)}{\left(x+4\right)\left(x+9\right)} agus, mar sin, is féidir iad a dhealú trína n-uimhreoirí a dhealú.
\frac{4x^{2}+16x-x^{2}-9x-x-9}{\left(x+4\right)\left(x+9\right)}
Déan iolrúcháin in 4x\left(x+4\right)-\left(x+1\right)\left(x+9\right).
\frac{3x^{2}+6x-9}{\left(x+4\right)\left(x+9\right)}
Cumaisc téarmaí comhchosúla in: 4x^{2}+16x-x^{2}-9x-x-9.
\frac{3x^{2}+6x-9}{x^{2}+13x+36}
Fairsingigh \left(x+4\right)\left(x+9\right)
Samplaí
Cothromóid chearnach
{ x } ^ { 2 } - 4 x - 5 = 0
Triantánacht
4 \sin \theta \cos \theta = 2 \sin \theta
Cothromóid líneach
y = 3x + 4
Uimhríocht
699 * 533
Maitrís
\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
Cothromóid chomhuaineach
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Difreáil
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Comhtháthú
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Teorainneacha
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}