Factor the expression 2x2+9x-5
No need to do it, won't help you in life.
2x^2 + 9x - 5 = 0 2x^2 + 10x - x - 5 = 0 2x(x + 5) - 1(x + 5) = 0 (2x - 1)(x + 5) = 0 x = 1/2, x = -5