Simplifying
$\left(12a+8b-4c\right)+\left(5a-7b+c\right)+\left(-10a-4b\right)$
$\sqrt{2\left[\frac{50+k}{2}\right]+4}=8$
$\int\left(4+2y^2\right)^2dx$
$\left(2x^2+4y\right)^2$
$sin^2\left(4x\right)\cdot cos^2\left(4x\right)$
$\frac{3x+3}{x+2}\le2$
$4^3\cdot4^3\cdot4$
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