2根号81-3×3次根号64=
问题描述:
2根号81-3×3次根号64=
答
2根号81-3×3次根号64
=2x9-3x4
=18-12
=6
2根号81-3×3次根号64=
2根号81-3×3次根号64
=2x9-3x4
=18-12
=6