Mathematics, 02.07.2019 14:30 hjeffrey168
Find the solutions to the equation below check all that apply x^2-9=0 a. x=1 b. x=-3 c. x=2 d. x=-2 e. x=3 f. x=-1
Answers: 1
![x^2-9=0\\\\\Rightarrow x^2=9\\\\\Rightarrow x=\pm\sqrt{9}~~~~~~~~~~~~~~~~~~~~~~~~~~~~~[\textup{taking square roo on both sides}]\\\\\Rightarrow x=\pm3\\\\\Rightarrow x=3,~~x=-3.](/tpl/images/0042/8593/fb806.png)
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Find the solutions to the equation below check all that apply x^2-9=0 a. x=1 b. x=-3 c. x=2 d. x=-2...
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