1. It is a polynomial equation of degree two that can be written in the form a X2 + bx+c = 0
a. linear equation
b.linear inequality
c.quadratic equation
d. quadratic inequality



2. Which of the following equations is NOT quadratic?
a. C= 12n -5
c. x2 + 2x = 2
b. 3r2 = 27
d. x (x - 3) = 5




3. What equation will be used to solve x2 - 8x = 9 using completing the square?
a. (x - 4)2 = 25
b. (x-4)2 = 13
C. (x + 4)2 = 25
d. (x + 4)2 = 13




4. What are the roots of the quadratic equation x2-3x - 10 = 0?
a. 2 and 5
b. 2 and 5
C. -10 and 1
d. 10 and -1​