$-y^2+2y+16$
$\sqrt{25x^{2n}}$
$4.\left(-4\right)$
$\left(-1\right)^3+\left(-1\right)^2-\left(-1\right)+1$
$\sqrt{2^2}-2\cdot2$
$-3x+1<2x$
$\sin\left(4x\right)+2\cdot\sin\left(x\right)\cdot\cos\left(x\right)+\sin\left(3x\right)$
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