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The equation 3x^2+x=7 has two solutions. What is the value of the positive solutions and the value of negative solutions?
1 Answer
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- 6 years ago
3x^2 + x - 7 = 0
Quadratic formula
-1 plus/minus sqrt(1 - 4(3)(-7)) all over 2(3)
-1 plus/minus sqrt(1 + 84) all over 6
-1 plus/minus sqrt(85) all over 6
-1 + sqrt(85) all over 6 = 1.3699
-1 - sqrt(85) all over 6 = -1.7033
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