$\left(8 m^{2} n-6 m n+4 m n^{2}\right)-\left(4 m^{2} n+4 m n-4 m n^{2}\right)$
A) $4 m^{4} n^{2}-10 m^{2} n^{2}+8 m^{2} n^{4}$
B) $4 m^{4} n^{2}-10 m n+8 m^{2} n^{4}$
C) $4 m^{2} n-10 m n+8 m n^{2}$
D) $4 m^{2} n-2$

Question

Quizplus · Accepted Answer

Subtracting the second polynomial from the first, we combine like terms: $8m^2n - 4m^2n = 4m^2n$, $-6mn - 4mn = -10mn$, and $4mn^2 + 4mn^2 = 8mn^2$.

(8m2n−6mn+4mn2)−(4m2n+4mn−4mn2)\left(8 m^{2} n-6 m n+4 m n^{2}\right)-\left(4 m^{2} n+4 m n-4 m n^{2}\right)(8m2n−6mn+4mn2)−(4m2n+4mn−4mn2)

$\left(8 m^{2} n-6 m n+4 m n^{2}\right)-\left(4 m^{2} n+4 m n-4 m n^{2}\right)$