Asked by Elliot
How would you solve by completing the square?
3x^2 + X - 1/2= 0
3x^2 + X - 1/2= 0
Answers
Answered by
Reiny
3x^2 + X = 1/2
x^2 + x/3 = 1/6
x^2 + x/3 + 1/36 = 1/6 + 1/36
(x+1/6)^2 = 7/36
x+1/6 = ± √7 / 6
x = -1/6 ± √7 /6 = (-1 ± √7)/6
x^2 + x/3 = 1/6
x^2 + x/3 + 1/36 = 1/6 + 1/36
(x+1/6)^2 = 7/36
x+1/6 = ± √7 / 6
x = -1/6 ± √7 /6 = (-1 ± √7)/6
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