$25x^2+20$
$sin\left(x+\frac{1}{4}\right)\pi-sin\left(x-\frac{3}{4}\right)\pi$
$4\sin x+3=\sin x-1$
$z\:=\:\ln\left(x\right)\:-\:y$
$3x-1<0$
$\sqrt[4]{16a^8}b^7c^6d^5$
$2x\left(3x+1\right)$
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