$8x\left(x^3-x+1\right)+2x^2\left(x-2\right)$
$-2x^2+36x+46=0$
$y=\frac{x^3+1}{e^{7x}}$
$4x^2-8x=8$
$-8+-10+-4+-10+-1$
$x2+x+4x+4$
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