$s^2+2s-8$
$\left(x^22\right)\left(x+3\right)$
$-\sqrt{49}+3\cdot5$
$12\sin^2x-11\sin x+2=0$
$10tan\left(x\right)=0$
$\left(-6\right)^2\:-\:\left(-4\right)^3\:+\:\left(-5\right)^0$
$n\:+10+9n-3$
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