What is the integral from 0 to 1 of x^2(x-1) ?

The integral from 0 to 1 of x^2(x-1) is -1/12

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integral from 0 to 1 of x^2(x-1)

\int_{0}^{1} x^{2} (x - 1) d x

- \frac{1}{12}

Decimal

- 0.08333 \dots

Solution steps

\int_{0}^{1} x^{2} (x - 1) d x

Expand

x^{2} (x - 1) : x^{3} - x^{2}

= \int_{0}^{1} x^{3} - x^{2} 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_{0}^{1} x^{3} d x - \int_{0}^{1} x^{2} d x

\int_{0}^{1} x^{3} d x = \frac{1}{4}

\int_{0}^{1} x^{2} d x = \frac{1}{3}

= \frac{1}{4} - \frac{1}{3}

Simplify

\frac{1}{4} - \frac{1}{3} : - \frac{1}{12}

= - \frac{1}{12}

What is the integral from 0 to 1 of x^2(x-1) ?
The integral from 0 to 1 of x^2(x-1) is -1/12