7x−217x-217x−21
(x⋅y+y)(y⋅x+x)\left(x\cdot y+y\right)\left(y\cdot x+x\right)(x⋅y+y)(y⋅x+x)
81g2−18g+481g^2-18g+481g2−18g+4
−10−(−8)(2(−3)−5(6)−7−(−1))-10-\left(-8\right)\left(\frac{2\left(-3\right)-5\left(6\right)}{-7-\left(-1\right)}\right)−10−(−8)(−7−(−1)2(−3)−5(6))
6x4−3⋅2x3+2⋅4x2+6⋅4x6x^4-3\cdot2x^3+2\cdot4x^2+6\cdot4x6x4−3⋅2x3+2⋅4x2+6⋅4x
n2(x−14)n3n\frac{n^2\left(x-14\right)^n}{3n}3nn2(x−14)n
5a2+3a2−15a2+10a2−2a25a^2+3a^2-15a^2+10a^2-2a^25a2+3a2−15a2+10a2−2a2
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