Question

Find the root of (2y+3)^2 = 81

Answer 1

Answer:

$4y {}^{2} + 9 + 6y = 81$

$4y {}^{2} + 6y = 72$

$2y {}^{2} + 3y = 36$

$2 {y}^{2} + 3y - 36 = 0$

now factorize this to get the answer

Answer 2

Hello mate

Answer :

y = 3 and -6

Hope it helps