已知实数m、n满足mn=2,m+2n=8,求代数式2m^2n+4mn^2的值

问题描述:

已知实数m、n满足mn=2,m+2n=8,求代数式2m^2n+4mn^2的值

2m^2n+4mn^2
=2mn(m+2n)
=2×2×8
=32