$4m^2-28m+49$
$1-2+3-4+5-6+7-8+9-10$
$\left(3x^2-4\right)\left(2x-7\right)$
$12x^2y-30x^2y^2+42x^5y^4$
$\sqrt[5]{x^3}y$
$64x^2+4x^2z+\frac{z^2}{16}$
$94\:=25h\:+\:69$
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