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Question

Simplify:
m2+3mm2+4m+3×m22m3m29


Solution

The correct option is D
m2+3m=m(m+3)
m2+4m+3=(m+1)(m+3)
m22m3=(m+1)(m3)
m29=(m+3)(m3)
m(m+3)(m+1)(m+3)×(m+1)(m3)(m+3)(m3)
Cancelling the terms we get mm+3

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