$a^2+b^2+c^2-2ab+2ac-abc;a=5;b=7;c=3$
$x^2-9x-220$
$4\left(x-6\right)+5\ge2\left(x-2\right)+10$
$\frac{63xy}{7x^2y^2}$
$4^{\frac{1}{2}}\sqrt{2\left(2\right)\left(3\right)}$
$\left(6d^{-6}\right)^2$
$\int\sin^75xdx$
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