Whakaoti i te ∫ (from 2 to 7) of (41.12x-(2(x-2))(-x-2/2))(7/2.3)

$$\int _ { 2 } ^ { 7 } ( 41.12 x - ( 2 ( x - 2 ) ) ( - \frac { x - 2 } { 2 } ) ) ( \frac { 7 } { 2.3 } )$$

Aromātai

$$\frac{203042}{69}\approx 2942.637681159$$

Ngā Upane Otinga

Me whakakore te 2 me te 2.

$$\int _{2}^{7}\left(41.12x-\left(-\left(x-2\right)\left(x-2\right)\right)\right)\times \frac{7}{2.3}\mathrm{d}x$$

Whakamahia te āhuatanga tohatoha hei whakarea te -\left(x-2\right) ki te x-2.

$$\int _{2}^{7}\left(41.12x-\left(-\left(x-2\right)x+2x-4\right)\right)\times \frac{7}{2.3}\mathrm{d}x$$

Whakamahia te āhuatanga tohatoha hei whakarea te -1 ki te x-2.

$$\int _{2}^{7}\left(41.12x-\left(\left(-x+2\right)x+2x-4\right)\right)\times \frac{7}{2.3}\mathrm{d}x$$

Whakamahia te āhuatanga tohatoha hei whakarea te -x+2 ki te x.

$$\int _{2}^{7}\left(41.12x-\left(-x^{2}+2x+2x-4\right)\right)\times \frac{7}{2.3}\mathrm{d}x$$

Pahekotia te 2x me 2x, ka 4x.

$$\int _{2}^{7}\left(41.12x-\left(-x^{2}+4x-4\right)\right)\times \frac{7}{2.3}\mathrm{d}x$$

Hei kimi i te tauaro o -x^{2}+4x-4, kimihia te tauaro o ia taurangi.

$$\int _{2}^{7}\left(41.12x-\left(-x^{2}\right)-4x-\left(-4\right)\right)\times \frac{7}{2.3}\mathrm{d}x$$

Ko te tauaro o -x^{2} ko x^{2}.

$$\int _{2}^{7}\left(41.12x+x^{2}-4x-\left(-4\right)\right)\times \frac{7}{2.3}\mathrm{d}x$$

Ko te tauaro o -4 ko 4.

$$\int _{2}^{7}\left(41.12x+x^{2}-4x+4\right)\times \frac{7}{2.3}\mathrm{d}x$$

Pahekotia te 41.12x me -4x, ka 37.12x.

$$\int _{2}^{7}\left(37.12x+x^{2}+4\right)\times \frac{7}{2.3}\mathrm{d}x$$

Whakarohaina te \frac{7}{2.3} mā te whakarea i te taurunga me te tauraro ki te 10.

$$\int _{2}^{7}\left(37.12x+x^{2}+4\right)\times \frac{70}{23}\mathrm{d}x$$

Whakamahia te āhuatanga tohatoha hei whakarea te 37.12x+x^{2}+4 ki te \frac{70}{23}.

$$\int _{2}^{7}37.12x\times \frac{70}{23}+x^{2}\times \frac{70}{23}+4\times \frac{70}{23}\mathrm{d}x$$

Me tahuri ki tau ā-ira 37.12 ki te hautau \frac{3712}{100}. Whakahekea te hautanga \frac{3712}{100} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 4.

$$\int _{2}^{7}\frac{928}{25}x\times \frac{70}{23}+x^{2}\times \frac{70}{23}+4\times \frac{70}{23}\mathrm{d}x$$

Me whakarea te \frac{928}{25} ki te \frac{70}{23} mā te whakarea taurunga ki te taurunga me te tauraro ki te tauraro.

$$\int _{2}^{7}\frac{928\times 70}{25\times 23}x+x^{2}\times \frac{70}{23}+4\times \frac{70}{23}\mathrm{d}x$$

Mahia ngā whakarea i roto i te hautanga \frac{928\times 70}{25\times 23}.

$$\int _{2}^{7}\frac{64960}{575}x+x^{2}\times \frac{70}{23}+4\times \frac{70}{23}\mathrm{d}x$$

Whakahekea te hautanga \frac{64960}{575} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 5.

$$\int _{2}^{7}\frac{12992}{115}x+x^{2}\times \frac{70}{23}+4\times \frac{70}{23}\mathrm{d}x$$

Tuhia te 4\times \frac{70}{23} hei hautanga kotahi.

$$\int _{2}^{7}\frac{12992}{115}x+x^{2}\times \frac{70}{23}+\frac{4\times 70}{23}\mathrm{d}x$$

Whakareatia te 4 ki te 70, ka 280.

$$\int _{2}^{7}\frac{12992}{115}x+x^{2}\times \frac{70}{23}+\frac{280}{23}\mathrm{d}x$$

Aromātaitia te tau tōpū tautuhi-kore i te tuatahi.

$$\int \frac{12992x}{115}+\frac{70x^{2}}{23}+\frac{280}{23}\mathrm{d}x$$

Kōmitimititia te kīanga tapeke mā te kīanga.

$$\int \frac{12992x}{115}\mathrm{d}x+\int \frac{70x^{2}}{23}\mathrm{d}x+\int \frac{280}{23}\mathrm{d}x$$

Whakatauwehea te pūmau i ēnei kīanga katoa.

$$\frac{12992\int x\mathrm{d}x}{115}+\frac{70\int x^{2}\mathrm{d}x}{23}+\int \frac{280}{23}\mathrm{d}x$$

Nā te mea \int x^{k}\mathrm{d}x=\frac{x^{k+1}}{k+1} mō te k\neq -1, me whakakapi \int x\mathrm{d}x ki te \frac{x^{2}}{2}. Whakareatia \frac{12992}{115} ki te \frac{x^{2}}{2}.

$$\frac{6496x^{2}}{115}+\frac{70\int x^{2}\mathrm{d}x}{23}+\int \frac{280}{23}\mathrm{d}x$$

Nā te mea \int x^{k}\mathrm{d}x=\frac{x^{k+1}}{k+1} mō te k\neq -1, me whakakapi \int x^{2}\mathrm{d}x ki te \frac{x^{3}}{3}. Whakareatia \frac{70}{23} ki te \frac{x^{3}}{3}.

$$\frac{6496x^{2}}{115}+\frac{70x^{3}}{69}+\int \frac{280}{23}\mathrm{d}x$$

Kimihia te tau tōpū o \frac{280}{23} mā te whakamahi i te ture mō te ripanga o ngā tau tōpū pātahi \int a\mathrm{d}x=ax.

$$\frac{6496x^{2}}{115}+\frac{70x^{3}}{69}+\frac{280x}{23}$$

Ko te tau tōpū tautuhi ko te pārōnaki kōaro o te kīanga i aromātaitia i te tepe tōrunga o te pāwhaitua, tangohia te pārōnaki kōaro i aromātaitia i te tepe tōraro o te pāwhaitua.

$$\frac{6496}{115}\times 7^{2}+\frac{70}{69}\times 7^{3}+\frac{280}{23}\times 7-\left(\frac{6496}{115}\times 2^{2}+\frac{70}{69}\times 2^{3}+\frac{280}{23}\times 2\right)$$

Whakarūnātia.

$$\frac{203042}{69}$$