3 years ago

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

Mathematics

1 answer:

velikii [3]3 years ago

4 0

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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