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Question

Simplify the given algebraic expression:
n2(n2)+2n3(n+3)6n(n4)

A
2n4+7n38n2+24n
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B
n4+5n38n2+24n
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C
2n4+7n34n2+6n
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D
n4+5n34n2+24n
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Solution

The correct option is A 2n4+7n38n2+24n
n2(n2)+2n3(n+3)6n(n4)
(Using am×an=a(m+n))
=(n2+12n2)+(2n3+1+6n3)(6n1+124n)
=n32n2+2n4+6n36n2+24n
(Grouping the like terms)
=2n4+7n38n2+24n

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