Question

(x的2次方y的m次方)乘以(x的3次方y的n次方)的m次方除以(x的1次方y的2m次方)的n次方

Answer 1

原式=(X^2Y^m)* (X^3Y^n)^m÷(XY^2m)^n

=X^2Y^m*X^3mY^mn÷X^nY^2mn

=X^(2+3m-n)Y^(m+mn-2mn)

=X^(2+3m-n)Y^(m-mn).