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12-10-2016
Mathematics

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Katie says when n=3 the answer to 4n2=144jack says when n=3 the answer to 4n2=36who is correct and why?

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12-10-2016

JACK IS CORRECT.

4n²= 36 when n=3, not 144.

It is because you have to power up first, then you should multiply. But Katie did the opposite, so she was wrong.

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