This built a foundation for understanding how to find the factored forms of different quadratic expressions You learned to distinguish the signs of the factors based on the middle, or linear, term in the quadratic expression

In the previous lesson, you experienced the role products and sums play in the way that quadratic expressions are converted between standard and factored forms.

Be able to explain how the numbers and signs in a quadratic expression in factored form relate to the numbers and signs in an equivalent expression in standard form; write an equivalent expression in factored form, given a quadratic expression in standard form with a negative constant term.