Liaabuggg
Liaabuggg
30-05-2017
Mathematics
contestada
Which set is the solution set for 3x^2-78=114
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mreijepatmat
mreijepatmat
04-06-2017
3x² - 78 = 114
3x² = +78 + 114
3x² = 192
x² = 192/3
x² = 64 and x = -+ √64, x' =8 and x" =-8
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