What is the integral from 0 to 4 of (2x-1)^2 ?

The integral from 0 to 4 of (2x-1)^2 is 172/3

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integral from 0 to 4 of (2x-1)^2

\int_{0}^{4} (2 x - 1)^{2} d x

\frac{172}{3}

Decimal Notation

57.33333 \dots

Solution steps

\int_{0}^{4} (2 x - 1)^{2} d x

Expand

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

= \int_{0}^{4} 4 x^{2} - 4 x + 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_{0}^{4} 4 x^{2} d x - \int_{0}^{4} 4 x d x + \int_{0}^{4} 1 d x

\int_{0}^{4} 4 x^{2} d x = \frac{256}{3}

\int_{0}^{4} 4 x d x = 32

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

= \frac{256}{3} - 32 + 4

Simplify

\frac{256}{3} - 32 + 4 : \frac{172}{3}

= \frac{172}{3}

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What is the integral from 0 to 4 of (2x-1)^2 ?
The integral from 0 to 4 of (2x-1)^2 is 172/3