Find the missing factor 4b^2+17b+15 + (b+3) ()

Simplifying 5 + - 1b = 0 Solving 5 + - 1b = 0 Move all terms containing b to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + - 5 + - 1b = 0 + - 5 Combine like terms: 5 + - 5 = 0 0 + - 1b = 0 + - 5 - 1b = 0 + - 5 Combine like terms: 0 + - 5 = - 5 - 1b = - 5 Divide each side by '-1'. b = 5 Simplifying b = 5Solutionb = {-0.75, 5} So i think the missing factors are -.75 and 5.