What is the integral of (7xe^{2x})/((1+2x)^2) ?

The integral of (7xe^{2x})/((1+2x)^2) is 7(-(e^{2x}x)/(2(1+2x))+1/4 e^{2x})+C

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integral of (7xe^{2x})/((1+2x)^2)

\int \frac{7 x e ^{2 x}}{( 1 + 2 x ) ^{2}} d x

7 (- \frac{e ^{2 x} x}{2 ( 1 + 2 x )} + \frac{1}{4} e^{2 x}) + C

Solution steps

\int \frac{7 x e ^{2 x}}{( 1 + 2 x ) ^{2}} d x

Take the constant out:

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

= 7 \cdot \int \frac{x e ^{2 x}}{( 1 + 2 x ) ^{2}} d x

Apply Integration By Parts

: - \frac{e ^{2 x} x}{2 ( 1 + 2 x )} - \int - \frac{1}{2} e^{2 x} d x

= 7 (- \frac{e ^{2 x} x}{2 ( 1 + 2 x )} - \int - \frac{1}{2} e^{2 x} d x)

\int - \frac{1}{2} e^{2 x} d x = - \frac{1}{4} e^{2 x}

= 7 (- \frac{e ^{2 x} x}{2 ( 1 + 2 x )} - (- \frac{1}{4} e^{2 x}))

Simplify

= 7 (- \frac{e ^{2 x} x}{2 ( 1 + 2 x )} + \frac{1}{4} e^{2 x})

Add a constant to the solution

= 7 (- \frac{e ^{2 x} x}{2 ( 1 + 2 x )} + \frac{1}{4} e^{2 x}) + C

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What is the integral of (7xe^{2x})/((1+2x)^2) ?
The integral of (7xe^{2x})/((1+2x)^2) is 7(-(e^{2x}x)/(2(1+2x))+1/4 e^{2x})+C