abbysimpson1239 abbysimpson1239
  • 18-12-2014
  • Mathematics
Answered

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

Answer :

konrad509
konrad509 konrad509
  • 18-12-2014
[tex]-3x^2+147=0\\ -3x^2=-147\\ x^2=49\\ x=-7 \vee x=7[/tex]
Answer Link
Аноним Аноним
  • 18-12-2014
-3x²+147=0

3x²=147

x²=147/3

x²=49

So:

x=√49=7, or... x=-√49=-7
Answer Link

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