factories = x² + 19x + 84
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Answer:
x2 +12x + 7x + 84 . ...........
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Answer:
x^2 + 19x + 84 = 0
x^2 + 12x + 7x + 84 = 0
x (x+12) + 7 (x+12) = 0
(x+7) (x+12) = 0
x = -7 , -12
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