Week 8 Standard A.10E Quadratic Factoring By Mr.Harb | October 11, 2016 0 Comment RC1- A.10E: Factor, if possible, trinomials with real factors in the form ax2 + bx + c, including perfect square trinomials of degree two. Practice 1 Which expression is equivalent to ax2+bx+c. Practice 2 Which expression is a factor of ax2+bx+c.