$-\left(1+a^2b^2+ab\right)$
$8\left(7+v\right)+3\left(v+7\right)=22$
$3x-7y;\:x=2$
$-18=2\left(3y-3\right)$
$8+4-\left(-7\right)$
$x^3+\:6x^2\:+\:12+8$
$\sin^2\left(x\right)+\left(\sin\:^2\left(x\right)\right)\left(\cos^2\left(x\right)\right)$
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