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  • 02-06-2018
  • Mathematics
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3m2+7=55 answer please

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gmany
gmany gmany
  • 02-06-2018
[tex]3m^2+7=55\ \ \ |-7\\\\3m^2=48\ \ \ |:3\\\\m^2=16\to m=\pm\sqrt{16}\\\\m=-4\ \vee\ m=4[/tex]
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