$x^2+6x+9=1$
$csc^2a-2$
$\sqrt[3]{48a^6b^9}$
$\int\left(x^2coskx\right)dx$
$1+\log\left(x-1\right)=\log8x$
$-4x\sin\left(2x\right)+2\cos\left(2x\right)-2x+4$
$20x^2+50x-70$
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