saucyyyy
saucyyyy
17-05-2017
Mathematics
contestada
Solve 3x 2 + 2 = 11 - x 2
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mjankiewicz
mjankiewicz
17-05-2017
[tex]3x^2 + 2 = 11 - x^2\\\\ 3x^2+x^2=11-2\\\\ 4x^2=9\\\\(2x)^2=3^2\\\\ |2x|=3\\\\ 2x=3 \ or \ 2x=-3\\\\ x=\frac{3}{2} \ or \ x=-\frac{3}{2}[/tex]
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