Question

1. Solve using formula x2 +7x+12=0.​

Answer 1

ax+by+c=0

2x+7x+12=0

9x+12=0

9x=-12

x=-12/9

x=-4/3

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Answer 2

Step-by-step explanation:

x²+7x+12=0

x²+( 4+3 ) x +12 =0

x²+4x+3x+12 =0

x(x+4)+3(x+4) =0

x+4=0, x+3 =0

x= -4, x = -3