Réitigh ∫ (2x^2+5)(x^2-3x) wrt x=

$$\int ( 2 x ^ { 2 } + 5 ) ( x ^ { 2 } - 3 x ) d x =$$

Luacháil

$$\frac{2x^{5}}{5}-\frac{3x^{4}}{2}+\frac{5x^{3}}{3}-\frac{15x^{2}}{2}+С$$

Céimeanna Réitigh

Úsáid an t-airí dáileach chun 2x^{2}+5 a mhéadú faoi x^{2}-3x.

$$\int 2x^{4}-6x^{3}+5x^{2}-15x\mathrm{d}x$$

Measc an tsuim téarma fá téarma.

$$\int 2x^{4}\mathrm{d}x+\int -6x^{3}\mathrm{d}x+\int 5x^{2}\mathrm{d}x+\int -15x\mathrm{d}x$$

Fág an leanúnach sna téarmaí as an áireamh.

$$2\int x^{4}\mathrm{d}x-6\int x^{3}\mathrm{d}x+5\int x^{2}\mathrm{d}x-15\int x\mathrm{d}x$$

Ó \int x^{k}\mathrm{d}x=\frac{x^{k+1}}{k+1} fá choinne k\neq -1, athchuir \int x^{4}\mathrm{d}x le \frac{x^{5}}{5}. Méadaigh 2 faoi \frac{x^{5}}{5}.

$$\frac{2x^{5}}{5}-6\int x^{3}\mathrm{d}x+5\int x^{2}\mathrm{d}x-15\int x\mathrm{d}x$$

Ó \int x^{k}\mathrm{d}x=\frac{x^{k+1}}{k+1} fá choinne k\neq -1, athchuir \int x^{3}\mathrm{d}x le \frac{x^{4}}{4}. Méadaigh -6 faoi \frac{x^{4}}{4}.

$$\frac{2x^{5}}{5}-\frac{3x^{4}}{2}+5\int x^{2}\mathrm{d}x-15\int x\mathrm{d}x$$

Ó \int x^{k}\mathrm{d}x=\frac{x^{k+1}}{k+1} fá choinne k\neq -1, athchuir \int x^{2}\mathrm{d}x le \frac{x^{3}}{3}. Méadaigh 5 faoi \frac{x^{3}}{3}.

$$\frac{2x^{5}}{5}-\frac{3x^{4}}{2}+\frac{5x^{3}}{3}-15\int x\mathrm{d}x$$

Ó \int x^{k}\mathrm{d}x=\frac{x^{k+1}}{k+1} fá choinne k\neq -1, athchuir \int x\mathrm{d}x le \frac{x^{2}}{2}. Méadaigh -15 faoi \frac{x^{2}}{2}.

$$\frac{2x^{5}}{5}-\frac{3x^{4}}{2}+\frac{5x^{3}}{3}-\frac{15x^{2}}{2}$$

Má tá F\left(x\right) mar frithdhíorthach do f\left(x\right), beidh tacar do frithdhíorthach uile do f\left(x\right) a thabhairt ag F\left(x\right)+C. Mar sin de, cur an comhtháthú leanúnach C\in \mathrm{R} don toradh.

$$\frac{2x^{5}}{5}-\frac{3x^{4}}{2}+\frac{5x^{3}}{3}-\frac{15x^{2}}{2}+С$$

Difreálaigh w.r.t. x

$$x\left(x-3\right)\left(2x^{2}+5\right)$$