(-2a²)²·(3a²b-2ab-4b^3)题目(-2ab²)²·(3a²b-2ab-4b^3)

问题描述:

(-2a²)²·(3a²b-2ab-4b^3)
题目(-2ab²)²·(3a²b-2ab-4b^3)

原式=(-2)²×a²(b²)²×(3a²b-2ab-4b³)=4a²b^4×(3a²b-2ab-4b³)=4a²b^4×3a²b-4a²b^4×2ab-4a²b^4×4b³=(4×3)×(a²×a²)×(b^4×...