5x3x3x3x3 等于5x多少平方？

Question

如题所述

Answer 1

5 x3x3x3x3=5x3²x3².

Answer 2

5＊3＊3＊3
=5＊27
=5＊(+-3根号2)^2

Answer 3

5×3×3×3×3=5x
x=81