6. Simplify 8x(x-3)=-1 to the standard form of quadratic equation.
A. 8x - 3 = 1
C. 8x2 - 24x + 1 = 0
B. 8x2 - 3 = -1
D. 8x2 - 24x - 1 = 0
7. Which among the equation can be considered as a quadratic equation?
A. X - 1 = 0
C. x - 22 = 3x
B. (0)x2 + 2x + 1 = 0
D. x2 + 3x + 1 = 0
8. Which of the following is a quadratic equation?
A. 2r?+ 48 -1
C. s? + 5s - 14 = 0
B. 3t-7=12
D. 2x² - 7x>3
9. In the quadratic equation 3x² + 7x -4 = 0, which is the quadratic term?
C. 3x?
B. 7x
D. -4
10. What is the standard form of the quadratic equation?
A. ax² + bx+c = 0
C.- ax? - bx + c = 0
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