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22-08-2016
Mathematics

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solve each equation by taking square roots

n^2 -7=38

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Аноним Аноним

22-08-2016

[tex]n^2 -7=38[/tex]

[tex]n^2=38+7[/tex] [tex]Add \ 7 \ to \ both \ sides[/tex]

[tex] n^2=45 [/tex]

[tex]n=+ \sqrt{45} [/tex]

[tex]n=+3 \sqrt{5} [/tex]

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