1. Which of the following is a quadratic equation?
A. X+1 = 3
C. x2 +1 + (x + 3)?
B. x (x + 2)
D. x2 + 6x = 9

2. What is the constant term of the equation x2 + 5x + 6 =0 ?
D. 6
A.1
B. 5x
C. x2

3. What is the quadratic coefficient of the equation 2x2 + 4x - 6 = 0
A. 2
B. 4
C.-6
D.O

4. What is the of x in x2 = 16 ?
A. 16
B. V16
C. +256
D.16

5. What is the value of x in x2 = 64 ?
B. +6
A. +7
C. +5
D. +8

6. What is the value of x that satisfies the equation 2x2 -2 -100.
A. +7
B. 6
C. +5
D. 14​