Question

Упростите выражение:3c2(−5c+4)(c−4)

Answer 1

$3c^{2} ( - 5 {c}^{2} + 20 + 4c - 16) = 3 {c}^{2} ( - 5 {c}^{2} + 4c + 4) = - 15 {c}^{4} + 12 {c}^{3} + 12 {c}^{2}$