Factor the expression
x^{2}+12x-13
Solve x^{2}+12x-13=0 for x
x^{2}+6x+8
Solve x^{2}+6x+8=0 for x
x^{2}-12x-28
Solve x^{2}-12x-28 for x
x^{2}+30x+81
Solve x^{2}+30x+81 for x
x^{2}-5x-14
Solve x^{2}-5x-14 for x
x^{2}-16x-36
Solve x^{2}-16x-36 for x