$3\left(-2\right)+2^{\left(-2\right)}$
$5x+6<6x+10$
$\sin2x\:-4\cos x$
$\int\frac{3}{5x-2}dx$
$b^4+2b^2-3mb$
$225+5y^2+y^4$
$-18\cos\left(x\right)^2-33\cos\left(x\right)-15$
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