What is the integral from-1 to 3 of (x^2-1)^2 ?

The integral from-1 to 3 of (x^2-1)^2 is 512/15

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integral from-1 to 3 of (x^2-1)^2

\int_{- 1}^{3} (x^{2} - 1)^{2} d x

\frac{512}{15}

Decimal Notation

34.13333 \dots

Solution steps

\int_{- 1}^{3} (x^{2} - 1)^{2} d x

Expand

(x^{2} - 1)^{2} : x^{4} - 2 x^{2} + 1

= \int_{- 1}^{3} x^{4} - 2 x^{2} + 1 d x

Apply the Sum Rule:

\int f (x) \pm g (x) d x = \int f (x) d x \pm \int g (x) d x

= \int_{- 1}^{3} x^{4} d x - \int_{- 1}^{3} 2 x^{2} d x + \int_{- 1}^{3} 1 d x

\int_{- 1}^{3} x^{4} d x = \frac{244}{5}

\int_{- 1}^{3} 2 x^{2} d x = \frac{56}{3}

\int_{- 1}^{3} 1 d x = 4

= \frac{244}{5} - \frac{56}{3} + 4

Simplify

\frac{244}{5} - \frac{56}{3} + 4 : \frac{512}{15}

= \frac{512}{15}

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What is the integral from-1 to 3 of (x^2-1)^2 ?
The integral from-1 to 3 of (x^2-1)^2 is 512/15