A) \[{{x}^{2}}(a-2b)(x+1)\]
B) \[\left( {{x}^{2}}-1 \right)\left( a-2b \right)\]
C) \[\left( {{x}^{2}}+1 \right)\left( a-2b \right)\left( x+1 \right)\]
D) \[x\left( a-2b \right)\left( x-1 \right)\]
Correct Answer: A
Solution :
(a): \[{{x}^{3}}\left( a-2b \right)+{{x}^{2}}\left( a-2b \right)\] \[={{x}^{2}}\left( a-2b \right)\left[ x+1 \right]\]
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