8. Which one of the following is not a quadratic equation? A. (x+2) - 2(x+3)
C. (x+2)(x-1) - x2 -2x-5
B. x+3x - (-1) (1-3x)?
D. x-x²+2x+1 = (x+1)
9. What is the equivalent quadratic equation of rational algebraic equation 1 + 4x = 1
A. 4x²-6x+20
B. 4x?-6x+2
C. 6x+4x2-2 3X 6
D. 4x2=-6. to 12 12 w
C. (x+2)(x-1) - x2 -2x-5
B. x+3x - (-1) (1-3x)?
D. x-x²+2x+1 = (x+1)
9. What is the equivalent quadratic equation of rational algebraic equation 1 + 4x = 1
A. 4x²-6x+20
B. 4x?-6x+2
C. 6x+4x2-2 3X 6
D. 4x2=-6. to 12 12 w
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