Question

Choose the correct simplification of the expression (5xy5)2(y3)4.

Answer 1

We know that:
x^n * x^m = x^(m+n) and ( x^m )^n = x^(mn)

`(5xy ^(5) ) ^(2) *(y ^(3)) ^(4)= \\ =25 x^(2) y ^(10)*y^(12)= \\ =25 x^(2) y^(22)`