-0=-1+3x-7x^2

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Solution for -0=-1+3x-7x^2 equation: 


Simplifying
0 = -1 + 3x + -7x2

Solving
0 = -1 + 3x + -7x2

Solving for variable 'x'.

Combine like terms: 0 + 1 = 1
1 + -3x + 7x2 = -1 + 3x + -7x2 + 1 + -3x + 7x2

Reorder the terms:
1 + -3x + 7x2 = -1 + 1 + 3x + -3x + -7x2 + 7x2

Combine like terms: -1 + 1 = 0
1 + -3x + 7x2 = 0 + 3x + -3x + -7x2 + 7x2
1 + -3x + 7x2 = 3x + -3x + -7x2 + 7x2

Combine like terms: 3x + -3x = 0
1 + -3x + 7x2 = 0 + -7x2 + 7x2
1 + -3x + 7x2 = -7x2 + 7x2

Combine like terms: -7x2 + 7x2 = 0
1 + -3x + 7x2 = 0

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

Divide each side by '7'.
0.1428571429 + -0.4285714286x + x2 = 0

Move the constant term to the right:

Add '-0.1428571429' to each side of the equation.
0.1428571429 + -0.4285714286x + -0.1428571429 + x2 = 0 + -0.1428571429

Reorder the terms:
0.1428571429 + -0.1428571429 + -0.4285714286x + x2 = 0 + -0.1428571429

Combine like terms: 0.1428571429 + -0.1428571429 = 0.0000000000
0.0000000000 + -0.4285714286x + x2 = 0 + -0.1428571429
-0.4285714286x + x2 = 0 + -0.1428571429

Combine like terms: 0 + -0.1428571429 = -0.1428571429
-0.4285714286x + x2 = -0.1428571429

The x term is -0.4285714286x.  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.
-0.4285714286x + 0.04591836735 + x2 = -0.1428571429 + 0.04591836735

Reorder the terms:
0.04591836735 + -0.4285714286x + x2 = -0.1428571429 + 0.04591836735

Combine like terms: -0.1428571429 + 0.04591836735 = -0.09693877555
0.04591836735 + -0.4285714286x + x2 = -0.09693877555

Factor a perfect square on the left side:
(x + -0.2142857143)(x + -0.2142857143) = -0.09693877555

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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