-2
-1
−12
1
Correct answer is D
x2+x−22x2+x−3
= x2+2x−x−22x2+3x−2x−3
= x(x+2)−1(x+2)x(2x+3)−1(2x+3)
= (x−1)(x+2)(x−1)(2x+3)
= x+22x+3
At x = -1,
= −1+22(−1)+3
= 11
= 1
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