Solve by taking the square roots of both sides. (x + 4)^2 - 5 = 2

asked Nov 3, 2016 225k views

4 votes

Solve by taking the square roots of both sides.

(x + 4)^2 - 5 = 2

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$(x + 4)^2 - 5 = 2 \\ (x + 4)^2 = 7\\ x+4=\sqrt7 \vee x+4=-\sqrt7\\ x=-4+\sqrt7 \vee x=-4-\sqrt7$

Havana answered Nov 8, 2016

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