Question

Find the value of a and b in the puzzle ab x b = aa9

Answer 1

hey

ab x b = 9aa

ab x b / aa = 9

b^2 / a = 9

b^2 = 9a

consider * as square root

b = 3*a

Answer 2

hey

ab x b = 9a^2

ab^2 = 9a^2

a cancel on both sides

b^2 = 9a

b = underroot 9a

b = 3 underroot a