$\cos\left(2x-30\right)=1$
$\frac{5x^4-x^3+3x^2+6x-7}{x+9}$
$-3\left(-5\right)^2-12\left(-5\right)-12$
$-8-2+4r-2-9r+9-2$
$\left(3x^2+2x\right)^4$
$\int_1^{y^2}xdx$
$-28v^2-8v-36$
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