A) \[9{{x}^{2}}{{y}^{2}}(2xy-3y+4x)\]
B) \[9{{x}^{2}}{{y}^{2}}(2xy+3y+4x)\]
C) \[~9{{x}^{2}}{{y}^{2}}(2xy+3y-4x)\]
D) \[9{{x}^{2}}{{y}^{2}}(2xy-3y-4x)\]
Correct Answer: A
Solution :
(a): Inspection shows that\[9{{x}^{2}}{{y}^{2}}\]is common factor: \[9{{x}^{2}}{{y}^{2}}\text{ }\left\{ 2xy-3y+4x \right\}\] Further factors are not possible.
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