In the following integral I want to change the bounds from $(0, 2)$ to $(-1, 1)$:
$\displaystyle{\int_{0}^{2}(1+x)^3 dx}$
How do I change them? I know that a variable changing is needed, but don't know how to use it to change the bounds. Indeed my question is how do I calculate the formula of the new variable(for example t
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