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
答
2m^2n+4mn^2
=2mn(m+2n)
=2×2×8
=32