Question

Which of the following is equivalent to the expression (9x^2y^3)(12x^-3y^5)( 2xy)? 23x^-5y^8 216^9 -x^-6y^8

Answer 1

If we multiply the first numbers in the three  parentheses we get 9*12*2  = 216
then  x's come to x to 1 and the y terms come to  y^9

so the answer is 216y^9