$10x^2+18x-40$
$2x^2+x-105=0$
$8x^4-4x^3+6x^2$
$\left(4ab^2+6xy^3\right)$
$3\cos^2x+5\sin x=1$
$\left(4\right)\left(2^3\right)+\left(8-3^2\right)$
$3\sin^2\left(x\right)+2\cos^2\left(x\right)+\sec^2\left(x\right)$
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