5x=-1-7x^2

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Solution for 5x=-1-7x^2 equation:


Simplifying
5x = -1 + -7x2

Solving
5x = -1 + -7x2

Solving for variable 'x'.

Reorder the terms:
1 + 5x + 7x2 = -1 + -7x2 + 1 + 7x2

Reorder the terms:
1 + 5x + 7x2 = -1 + 1 + -7x2 + 7x2

Combine like terms: -1 + 1 = 0
1 + 5x + 7x2 = 0 + -7x2 + 7x2
1 + 5x + 7x2 = -7x2 + 7x2

Combine like terms: -7x2 + 7x2 = 0
1 + 5x + 7x2 = 0

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

Divide each side by '7'.
0.1428571429 + 0.7142857143x + x2 = 0

Move the constant term to the right:

Add '-0.1428571429' to each side of the equation.
0.1428571429 + 0.7142857143x + -0.1428571429 + x2 = 0 + -0.1428571429

Reorder the terms:
0.1428571429 + -0.1428571429 + 0.7142857143x + x2 = 0 + -0.1428571429

Combine like terms: 0.1428571429 + -0.1428571429 = 0.0000000000
0.0000000000 + 0.7142857143x + x2 = 0 + -0.1428571429
0.7142857143x + x2 = 0 + -0.1428571429

Combine like terms: 0 + -0.1428571429 = -0.1428571429
0.7142857143x + x2 = -0.1428571429

The x term is 0.7142857143x.  Take half its coefficient (0.3571428572).
Square it (0.1275510204) and add it to both sides.

Add '0.1275510204' to each side of the equation.
0.7142857143x + 0.1275510204 + x2 = -0.1428571429 + 0.1275510204

Reorder the terms:
0.1275510204 + 0.7142857143x + x2 = -0.1428571429 + 0.1275510204

Combine like terms: -0.1428571429 + 0.1275510204 = -0.0153061225
0.1275510204 + 0.7142857143x + x2 = -0.0153061225

Factor a perfect square on the left side:
(x + 0.3571428572)(x + 0.3571428572) = -0.0153061225

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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