$4x^2-12x+9$
Compute the integral
$\int xdx$
$\int\left(x\cdot\cos\left(2x^2+3\right)\right)dx$
$\int x\left(x^2-3\right)dx$
$\int x^2\sin\left(x\right)dx$
$\int x^2\cos\left(2x\right)dx$
$x^2-2x+1$
Factor the expression.
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