$-1-3+5-8-4-3+2$
$2\left(2a\right)\left(-b\right)$
$\sqrt{1-0.2116}$
$10\left(2y+2\right)-y=2\left(8y-8\right)$
$x^2-4x+\frac{4}{2}$
$2\left(x+5\right)-4\left(2x-3\right)=16$
$3x-3+x^2+8x-10$
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