$9x^2<1$
$100y^2+20yz+z^2$
$8x\left(4x-8\right)$
$48.77\cdot59.42$
$\left(3x+1\right)\left(x+3\right)^2$
$3^3\cdot2$
$\left(+8\right)x\:\left(-11\right)$
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