3q-7q^2-2=0

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Solution for 3q-7q^2-2=0 equation:


Simplifying
3q + -7q2 + -2 = 0

Reorder the terms:
-2 + 3q + -7q2 = 0

Solving
-2 + 3q + -7q2 = 0

Solving for variable 'q'.

Begin completing the square.  Divide all terms by
-7 the coefficient of the squared term: 

Divide each side by '-7'.
0.2857142857 + -0.4285714286q + q2 = 0

Move the constant term to the right:

Add '-0.2857142857' to each side of the equation.
0.2857142857 + -0.4285714286q + -0.2857142857 + q2 = 0 + -0.2857142857

Reorder the terms:
0.2857142857 + -0.2857142857 + -0.4285714286q + q2 = 0 + -0.2857142857

Combine like terms: 0.2857142857 + -0.2857142857 = 0.0000000000
0.0000000000 + -0.4285714286q + q2 = 0 + -0.2857142857
-0.4285714286q + q2 = 0 + -0.2857142857

Combine like terms: 0 + -0.2857142857 = -0.2857142857
-0.4285714286q + q2 = -0.2857142857

The q term is -0.4285714286q.  Take half its coefficient (-0.2142857143).
Square it (0.04591836735) and add it to both sides.

Add '0.04591836735' to each side of the equation.
-0.4285714286q + 0.04591836735 + q2 = -0.2857142857 + 0.04591836735

Reorder the terms:
0.04591836735 + -0.4285714286q + q2 = -0.2857142857 + 0.04591836735

Combine like terms: -0.2857142857 + 0.04591836735 = -0.23979591835
0.04591836735 + -0.4285714286q + q2 = -0.23979591835

Factor a perfect square on the left side:
(q + -0.2142857143)(q + -0.2142857143) = -0.23979591835

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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