Answer:
x² + 7x + 12 = (x + 3)(x + 4)
Explanation:
To factor the quadratic expression x² + 7x + 12, we need to find two binomials whose product gives us the original expression. The general form for factoring a quadratic expression is (x + m)(x + n), where m and n are constants.
To factor x² + 7x + 12, we need to find two numbers whose sum is 7 (the coefficient of the middle term) and whose product is 12 (the constant term).
The numbers that satisfy these conditions are 3 and 4 (3 + 4 = 7 and 3 * 4 = 12).
So, we can factor the expression as follows:
x² + 7x + 12 = (x + 3)(x + 4)