$2x^2-32x^2$
$acx^2+x\left(ad+bc+c\right)+d\left(1+b\right)$
$4ab-7ab+8ab^2$
$\sqrt[3]{32x^4}$
$3\cos2x-5\cos x=1$
$15-22.50$
$\sin^2x-10=-8$
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