$-8x^2+3x-7=0$
$\left(\frac{1}{4}x+\frac{2}{5}x^3\right)^3$
$\left(3^2\cdot5\right)^3$
$4d^2+14d+12$
$23a^2b^4cm+46a^5bc^3m^2-92ab^3c^4m^2$
$-7.6-88$
$\left(x+9\right)^2-\left(y-5\right)^2$
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