Question

Solve by factoring x^2+7x=-12

Answer 1

x^2 +7x = -12
x^2 + 7x + 12 = 0
0 = x^2 + 7x + 12; (What adds up to 7 and is also multiplied to equal +12) (Only +3 and +4)
= (x + 3)(x+4)
Using null factor law

x + 3 = 0
x = -3
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x +4 = 0
x = -4