$3+8b+7-3b+9$
$\left(x^2y^2\right)\left(x^2y^2\right)$
$-3\cos\left(x\right)=-11\cos\left(x\right)-4$
$7x^2-16x+9=0$
$\cos\left(\frac{11\pi}{12}-\frac{3\pi}{4}\right)$
$\int_1^x\left(t^2\right)dt$
$\left(-3x+5\right).\left(-3x-5\right)$
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