−34or3
−23or−3
23or3
34or−3
Correct answer is D
The equation 3x−24x2+9x−9 is undefined when the denominator = 0.
4x2+9x−9=0
4x2+12x−3x−9=0
4x(x+3)−3(x+3)=0
(4x−3)(x+3)=0
x = 34 or x = -3.
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