SOLUTION: Use the quadratic formula to solve the equation 1/14x^2-1/7x=1
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Question 1010447: Use the quadratic formula to solve the equation 1/14x^2-1/7x=1
Found 2 solutions by It is costly, fractalier:
Answer by It is costly(175) (Show Source): You can put this solution on YOUR website!
Answer by fractalier(6550) (Show Source): You can put this solution on YOUR website!
Let us clear fractions first...makes our job easier, so from
1/14x^2-1/7x=1
we multiply by 14 and get
x^2 - 2x = 14
x^2 - 2x - 14 = 0
and
x = (2 +/- sqrt(4 + 56)) / 2
x = (2 +/- sqrt(60)) / 2
x = (2 +/- 2*sqrt(15)) / 2
x = 1 +/- sqrt(15)
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