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Which set is the solution set for 3x^2-78=114

Which set is the solution set for 3x^2-78=114
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Which set is the solution set for 3x^2-78=114

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User F Perroch
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1 Answer

5 votes
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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User Alex Reid
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