Sunday, 13 July 2014

algebra precalculus - Simplifying an expression with algebraic indices



I don't know why but I just can't simplify this expression and its driving me mad!! Could someone please help me with the steps?



2n92n+16n2




I know the answer is 4 x 33n+4 I just can't get there.



Thanks in advance :)


Answer



Notice that:



6n2=2n23n2



and




92n+1=34n+2



Then use exponent rules.


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