VOCABULARY
Factor to solve: x^2 - 4x - 21=0
What are -3 and 7?
Factor to solve: x^2 - 25 = 0.
What are -5 and 5?
Using QF solve: x^2 + 8x + 16 = 0.
What is -4?
Using QF solve: 2x^2 + 4x - 6 = 0
What are 1 and -3?
Using QF solve: x^2 + 4x = 0
What are -4 and 0?