factories :-
1) x²+7x+12
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Answered by
43
Step-by-step explanation:
x²+7x+12 = x²+4x+3x+12
x²+7x+12 = x(x+4) +3(x+4)
x²+7x+12 = (x+3)(x+4)
so, value of x= -3,-4
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