What is the integral from-4 to 2 of 2x ?

The integral from-4 to 2 of 2x is -12

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integral from-4 to 2 of 2x

\int_{- 4}^{2} 2 x d x

- 12

Solution steps

\int_{- 4}^{2} 2 x d x

Take the constant out:

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

= 2 \cdot \int_{- 4}^{2} x d x

Apply the Power Rule

: [\frac{x ^{2}}{2}]_{- 4}^{2}

= 2 [\frac{x ^{2}}{2}]_{- 4}^{2}

Compute the boundaries:

- 6

= 2 (- 6)

Simplify

= - 12

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