3⋅24−5⋅22−13\cdot2^4-5\cdot2^2-13⋅24−5⋅22−1
(2n+5f)2\left(2n+5f\right)^2(2n+5f)2
3x2−5x+93x^2-5x+93x2−5x+9
−1.9x−1.9-1.9x-1.9−1.9x−1.9
(2y+y2+1)(y−4)\left(2y+y^2+1\right)\left(y-4\right)(2y+y2+1)(y−4)
x2+20x+12=0x^2+20x+12=0x2+20x+12=0
81x2−481x^2-481x2−4
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