krj275106 krj275106

08-01-2015
Mathematics

contestada

Solve by taking the square roots of both sides.

(x + 4)^2 - 5 = 2

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konrad509 konrad509

08-01-2015

[tex] (x + 4)^2 - 5 = 2 \\ (x + 4)^2 = 7\\ x+4=\sqrt7 \vee x+4=-\sqrt7\\ x=-4+\sqrt7 \vee x=-4-\sqrt7 [/tex]

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