(−2x+7)2\left(-2x+7\right)^2(−2x+7)2
2y=13+t−dydt2y=\frac{1}{3}+t-\frac{dy}{dt}2y=31+t−dtdy
(ab7+c)(c−ab7)\left(ab^7+c\right)\left(c-ab^7\right)(ab7+c)(c−ab7)
u2+12u+1u^2+12u+1u2+12u+1
2a3+a2−2a−12a^3+a^2-2a-12a3+a2−2a−1
3cos2x3cos^2x3cos2x
12x−4x2+512x-4x^2+512x−4x2+5
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