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Nata [24]
4 years ago
13

Factorise x^2 + 7x + 12

Mathematics
2 answers:
Alina [70]4 years ago
8 0
8x^2 would be you answer  in all if it does not have details this would be your answer because it does not give you an = sign or a number for x.<span />
Alex17521 [72]4 years ago
7 0
So, x^2 + 7x + 12 =
( x + 4) ( x + 3)
x(x + 7) + 12
(x + 7/2)^2 - 1/4
or
<span> that factors into (X - 4) x (X - 3)
you just divide the last number (12) into different things and see what will add together to get the middle number (-7)
-4 x -3 = 12 and -4 + -3 + -7

then you set the 2 factors = 0
X - 4 = 0 --> X = 4
X -3 = 0 --> X = 3

so 4 and 3 are the answers

I gave you the 2 ways I would answer this question, hope it helped : )
</span>
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