Chapter 6 - Factoring, Solving Equations, and Problem Solving - 6.3 - Factoring Trinomials of the Form x^2+bx+x - Problem Set 6.3 - Page 256: 71

The answer is attached.

For the second problem, the factors were not set equal to zero, so it is necessary to multiply the factors out and subtract 8 on both sides of the equations. After this is done, we can factor the equation again, and since the factors will be set equal to zero this time, we can now solve as normal.