3. What is 3x ( x - 5) = 12 in standard form of quadratic equation?
A. 3x2 +15x +12 = 0 B. 3x2 - 15x +12 = 0 C. 3x2 -15x - 12 = 0 D.3x2 +15x-12 = 0
4. Which of the following is a quadratic equation?
A. 2x2 + or -1 B. x2 + 4x -6 = 0 C. 8t - 8 = 10 D. 5x2 - 7x s 2
5. What is c in the quadratic equation 2x2 + 8x + 10 = 0?
A. 10
B. 8x C. 2x2 D. 2x
6. In the quadratic equation 4x2 + 6x - 3 = 0, which is the linear term?
B. 6x C. 4x2 D. -3
7. The two consecutive positive even numbers whose sum of their squares is 460. Which of the
following equations represents the given situation?
A. 2x2 + 4x - 456 = 0 B. 2x2 + 2x + 456 = 0 C. 2x2 - 4x + 456 = 0 D. 2x2 + 2x - 456 = 0
8. What is the value of b in the equation 6 + 2x2 = 6x? A. 6 B. -6 C. 2 D.-2
A. x2