$\int_{-1}^1\left(z\sqrt{25-z^2}\right)dz$
$45x^5y^3z^5+60x^7y^2-30x^4y^5$
$75x^2-90xy+27y^2$
$\frac{\:4x^2-16y^2}{2x-4y}$
$\int\left(4\left(7+2x^{\frac{1}{2}}\right)\right)dx$
$\left(-5x+3x^4+3-4x^2\right)+\left(-x^3-x+x^2+1\right)$
$-549+293+193-36+158$
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