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Popular >

integral of-2x^2e^x

Solution

\int - 2 x^{2} e^{x} d x

Solution

- 2 (x^{2} e^{x} - 2 (e^{x} x - e^{x})) + C

Solution steps

\int - 2 x^{2} e^{x} d x

Take the constant out:

\int a \cdot f (x) d x = a \cdot \int f (x) d x

= - 2 \cdot \int x^{2} e^{x} d x

Apply Integration By Parts

: x^{2} e^{x} - \int 2 x e^{x} d x

= - 2 (x^{2} e^{x} - \int 2 x e^{x} d x)

\int 2 x e^{x} d x = 2 (e^{x} x - e^{x})

= - 2 (x^{2} e^{x} - 2 (e^{x} x - e^{x}))

Add a constant to the solution

= - 2 (x^{2} e^{x} - 2 (e^{x} x - e^{x})) + C

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Frequently Asked Questions (FAQ)

What is the integral of-2x^2e^x ?
The integral of-2x^2e^x is -2(x^2e^x-2(e^xx-e^x))+C