Question

7.5 - factoring polynomials - part 1
factor this quadratic expression.
$x^2 + 11x + 28$

Explanation:

Step1: Find pair for sum 11, product 28

Identify two numbers that add to 11 and multiply to 28: 4 and 7.

Step2: Write factored form

Use the two numbers to form binomial factors.
$x^2 + 11x + 28 = (x+4)(x+7)$

Answer:

$(x+4)(x+7)$