Question 474494
8x^2+19x=15
8x^2+19x-15 = 0
8x^2+8x-15x-15 = 0
(8x^2+8x)-(15x+15) = 0
8x(x+1)-15(x+1) = 0
(x+1)(8x-15) = 0
x = {-1, 15/8}