$x^2+9x=-14$
$\left(9ab+5xy\right)^3$
$\int_0^{\infty}\left(\frac{sin\left(x\right)}{x^2}\right)dx$
$\sin^4a-cos^4a$
$tg\:\left(x+y\right)=\sqrt{3}$
$\left(a^3-x+3c-d\right)^2$
$a^3-3a^2+a$
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