Aaroneyhegigirlgi Aaroneyhegigirlgi

06-05-2017
Mathematics

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Solve 4r2 – 16 = 84.

{±4}

{±3}

{±6}

{±5}

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PsychrolutesMarcidus PsychrolutesMarcidus

06-05-2017

4r²– 16 = 84
4r² = 84+16
4r²= 100
r²=25
r=√25
r=±5

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