What is the integral from-1 to 5 of sqrt(2x+6) ?

The integral from-1 to 5 of sqrt(2x+6) is 56/3

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integral from-1 to 5 of sqrt(2x+6)

\int_{- 1}^{5} 2 x + 6 d x

\frac{56}{3}

Decimal Notation

18.66666 \dots

Solution steps

\int_{- 1}^{5} 2 x + 6 d x

Apply u-substitution

: \int_{4}^{16} \frac{u}{2} d u

= \int_{4}^{16} \frac{u}{2} d u

Take the constant out:

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

= \frac{1}{2} \cdot \int_{4}^{16} u d u

Apply the Power Rule

: [\frac{2}{3} u^{\frac{3}{2}}]_{4}^{16}

= \frac{1}{2} [\frac{2}{3} u^{\frac{3}{2}}]_{4}^{16}

Compute the boundaries:

\frac{112}{3}

= \frac{1}{2} \cdot \frac{112}{3}

Simplify

= \frac{56}{3}

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What is the integral from-1 to 5 of sqrt(2x+6) ?
The integral from-1 to 5 of sqrt(2x+6) is 56/3