Question

Simplify
(3y)^2 x y^-1

Answer 1

9y

Explanation:

`\bullet\; \tt{(3y)^2} = 3^2y^2 = 9y^2}`

`\bullet\; \tt y^(-1) = (1)/(y)\\\\\bullet\;(3y)^2 * y^(-1) = 9y^2 * (1)/(y ) = (9y^2)/(y)\\\\\\bullet \tt (y^2)/(y) = y\\\\\tt \bullet (9y^2)/(y) = 9y`