Упростите -36c -3(5-6c)²

Question

Упростите -36c -3(5-6c)²

Answer 1

-36c - 3(5 - 6c)^2 = -36c - 3(25 - 60c + 36c^2) = - 36c - 75 + 180c - 108c^2 = -108c^2 + 144c - 75