Question

4x(278x^2y + 561y^2z)-7y^2(9y+10x)
Equals what
It is 100 points

Answer 1

$4x(278x^2y + 561y^2z)-7y^2(9y+10x)$

$=1112x^3y+2224xy^2z-70xy^2-63y^3$

∴ 1112 x³y + 2224 xy²z - 70 xy² - 63 y³