$\left(cos\:\theta\:+1\right)\left(cos\:\theta\:-1\right)$
$\frac{10x^3+20x+2\sqrt{2}}{\left(x^2+2\right)\left(x^2+1\right)}$
$2\left(6g\right)$
$8k^2+7k$
$\left(axy^2\:+\:a^2x^2y\right)^2\:\:$
$7-11\sin x-5\cos^2x=0$
$\sqrt{4\sqrt{2a+32a}}$
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