Factories x²+7x+12 by splitting the middle term
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Answered by
0
Answer:
(x+3)(x+4)
Step-by-step explanation:
x^2 + 4x + 3x +12
= x(x+4) + 3(x+4)
=(x+3)(x+4)
=x= -3, x= -4
hope it helps :)
Answered by
6
→ x² + 7x + 12 = 0
→ x² + 3x + 4x + 12 = 0
→ (x² + 3x) (4x + 12) = 0
→ x(x + 3) +4(x + 3) = 0
→ (x + 4) (x + 3) = 0
Thus, (x + 4) = 0 or (x + 3) = 0
So, x = -4 or x = -3.
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