1. To solve x- 8x=0 by completing the square, we use
a. x² – 8x +16=0
b. x2 - 8x +16=16
c. x2 - 8x +16= -16
d. Or more
2. If a quadratic equation can be solved in all the possible ways, which should be the best method to use?
I. Factoring
II. Completing the Square
III. Quadratic Formula
IV. Extracting Square Roots
a. I
b. II
c. III
d. or more
4. A quadratic equation has roots r and s. What is the equation?
a. ax+bx+c=0
b. ax? – (r+s) - rs = 0
c. ax – (r+s)x + rs = 0 ​