a+2b=0 , 求a^3+3a^2 × b+2ab^2的值

来源：学生作业帮助网编辑：六六作业网时间：2024/05/22 14:14:36

a+2b=0,求a^3+3a^2×b+2ab^2的值a+2b=0,求a^3+3a^2×b+2ab^2的值a+2b=0,求a^3+3a^2×b+2ab^2的值a^3+3a^2×b+2ab^2=a(a&s

a+2b=0 , 求a^3+3a^2 × b+2ab^2的值
a+2b=0 , 求a^3+3a^2 × b+2ab^2的值

a+2b=0 , 求a^3+3a^2 × b+2ab^2的值
a^3+3a^2 × b+2ab^2
=a(a²+3ab+2b²)
=a(a+2b)(a+b)
=0