abbysimpson1239 abbysimpson1239

19-12-2014
Mathematics

contestada

How do you solve this quadratic equation.
-3x^2+147=0

Respuesta :

konrad509 konrad509

19-12-2014

[tex]-3x^2+147=0\\ -3x^2=-147\\ x^2=49\\ x=-7 \vee x=7[/tex]

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Аноним Аноним

19-12-2014

-3x²+147=0

3x²=147

x²=147/3

x²=49

So:

x=√49=7, or... x=-√49=-7

Answer Link

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