$\left(8x^{3}-12x^{2}y+6xy^{2}-9y^{3}\right)\cdot\left(2x+3y\right)$
$x\sqrt{x}^2-1$
$\left(5c^2+6d^2\right)\:\left(5c^2-6d^2\right)$
$\int\left(\sin\left(3x\right)^2\cos\left(3x\right)^2\right)dx$
$\left(secy-tany\right)\left(cscy+1\right)=coty$
$8\:\left(5\:-\:+8\right)\:-\:\left(+2\right)$
$1.66\:x\:10-6$
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