Question

(4y-5)(y+3)=(2y+5

Answer 1

(4y - 5)(y + 3) = (2y + 5)^2
4y^2 + 12 y - 5y - 15 = 4y^2 + 20y + 25
4y^2 - 4y^2 + 12y - 20y - 15 - 25 = 0
-8y - 40 = 0
-8y = 40
-y = 5
y = -5