Answer:
(x+4) * (x+3)
Explanation:
To factor the general expression:
X²+ax+c
We need to find the numbers b and d of the factoring expression:
(x+b) * (x+d)
Where:
b*d = c
b+d = a
For the expression:
X²+7x+12
We need to find b and d that:
b+d = 7
b*d = 12
If b = 4 and d = 3, the expression could be:
(x+4) * (x+3) = X² + 4x + 3x + 12 = X² + 7x +12