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Makovka662 [10]
3 years ago
14

3m2+7=55 answer please

Mathematics
1 answer:
kenny6666 [7]3 years ago
6 0
3m^2+7=55\ \ \ |-7\\\\3m^2=48\ \ \ |:3\\\\m^2=16\to m=\pm\sqrt{16}\\\\m=-4\ \vee\ m=4
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