6 or 3
-18 or -9
-7 or 5
-5 or 7
Correct answer is C
An fraction is undefined when the denominator has value = 0.
x2−9x+18x2+2x−35 is undefined when x2+2x−35=0
x2+7x−5x−35=0⟹(x+7)(x−5)=0
x=-7 or 5
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