Question

x^n=2,y的n次方=3,分别求出（xy)^3n和（x^2y^2)^n的值.

Answer 1

x^n=2

y^n=3

(xy)^n=6

(xy)^3n

=[(xy)^n]^3

=6^3

=216

(x^2y^2)^n

=[(xy)^n]^2

=6^2

=36