What is the integral from 0 to 1 of (x+3)e^{2x} ?

The integral from 0 to 1 of (x+3)e^{2x} is (7e^2-5)/4

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integral from 0 to 1 of (x+3)e^{2x}

\int_{0}^{1} (x + 3) e^{2 x} d x

\frac{7 e ^{2} - 5}{4}

Decimal

11.68084 \dots

Solution steps

\int_{0}^{1} (x + 3) e^{2 x} d x

Apply Integration By Parts

: [\frac{1}{2} e^{2 x} (x + 3) - \int \frac{1}{2} e^{2 x} d x]_{0}^{1}

= [\frac{1}{2} e^{2 x} (x + 3) - \int \frac{1}{2} e^{2 x} d x]_{0}^{1}

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

= [\frac{1}{2} e^{2 x} (x + 3) - \frac{1}{4} e^{2 x}]_{0}^{1}

Simplify

[\frac{1}{2} e^{2 x} (x + 3) - \frac{1}{4} e^{2 x}]_{0}^{1} : [\frac{1}{4} (2 e^{2 x} x + 5 e^{2 x})]_{0}^{1}

= [\frac{1}{4} (2 e^{2 x} x + 5 e^{2 x})]_{0}^{1}

Compute the boundaries:

\frac{7 e ^{2}}{4} - \frac{5}{4}

= \frac{7 e ^{2}}{4} - \frac{5}{4}

Simplify

= \frac{7 e ^{2} - 5}{4}

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What is the integral from 0 to 1 of (x+3)e^{2x} ?
The integral from 0 to 1 of (x+3)e^{2x} is (7e^2-5)/4