x (x +7 ) + 12 = 0
x2 + 7x +12 = 0
x2 + 3x + 4x +12 = 0
x(x+3) +4 (x+3)=0
(x+3) (x+4) = 0
X= -3 or -4
Kavungya answered the question on November 8, 2019 at 06:31
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