∫ (2x^2+5)(x^2-3x) wrt x= eching

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

Baholash

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

Yechim qadamlari

2x^{2}+5 ga x^{2}-3x ni ko'paytirish orqali distributiv xususiyatdan foydalanish.

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

Summani muddatma-muddat integratsiya qiling.

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

Har bir shartda konstantani qavsdan tashqariga oling.

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

k\neq -1 uchun integral \int x^{k}\mathrm{d}x=\frac{x^{k+1}}{k+1} boʻlgani uchun, \int x^{4}\mathrm{d}x integralni \frac{x^{5}}{5} bilan almashtiring. 2 ni \frac{x^{5}}{5} marotabaga ko'paytirish.

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

k\neq -1 uchun integral \int x^{k}\mathrm{d}x=\frac{x^{k+1}}{k+1} boʻlgani uchun, \int x^{3}\mathrm{d}x integralni \frac{x^{4}}{4} bilan almashtiring. -6 ni \frac{x^{4}}{4} marotabaga ko'paytirish.

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

k\neq -1 uchun integral \int x^{k}\mathrm{d}x=\frac{x^{k+1}}{k+1} boʻlgani uchun, \int x^{2}\mathrm{d}x integralni \frac{x^{3}}{3} bilan almashtiring. 5 ni \frac{x^{3}}{3} marotabaga ko'paytirish.

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

k\neq -1 uchun integral \int x^{k}\mathrm{d}x=\frac{x^{k+1}}{k+1} boʻlgani uchun, \int x\mathrm{d}x integralni \frac{x^{2}}{2} bilan almashtiring. -15 ni \frac{x^{2}}{2} marotabaga ko'paytirish.

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

Агар F\left(x\right)f\left(x\right) ning dastlabki holati boʻlsa, u holatda f\left(x\right) ning barcha dastlabki holatlari toʻplami F\left(x\right)+C tarafidan belgilanadi. Shu sababli natijaga C\in \mathrm{R} integrallash konstantasini qoʻshing.

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

x ga nisbatan hosilani topish

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