10x^2=-12x-7

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Solution for 10x^2=-12x-7 equation:


Simplifying
10x2 = -12x + -7

Reorder the terms:
10x2 = -7 + -12x

Solving
10x2 = -7 + -12x

Solving for variable 'x'.

Reorder the terms:
7 + 12x + 10x2 = -7 + -12x + 7 + 12x

Reorder the terms:
7 + 12x + 10x2 = -7 + 7 + -12x + 12x

Combine like terms: -7 + 7 = 0
7 + 12x + 10x2 = 0 + -12x + 12x
7 + 12x + 10x2 = -12x + 12x

Combine like terms: -12x + 12x = 0
7 + 12x + 10x2 = 0

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

Divide each side by '10'.
0.7 + 1.2x + x2 = 0

Move the constant term to the right:

Add '-0.7' to each side of the equation.
0.7 + 1.2x + -0.7 + x2 = 0 + -0.7

Reorder the terms:
0.7 + -0.7 + 1.2x + x2 = 0 + -0.7

Combine like terms: 0.7 + -0.7 = 0.0
0.0 + 1.2x + x2 = 0 + -0.7
1.2x + x2 = 0 + -0.7

Combine like terms: 0 + -0.7 = -0.7
1.2x + x2 = -0.7

The x term is 1.2x.  Take half its coefficient (0.6).
Square it (0.36) and add it to both sides.

Add '0.36' to each side of the equation.
1.2x + 0.36 + x2 = -0.7 + 0.36

Reorder the terms:
0.36 + 1.2x + x2 = -0.7 + 0.36

Combine like terms: -0.7 + 0.36 = -0.34
0.36 + 1.2x + x2 = -0.34

Factor a perfect square on the left side:
(x + 0.6)(x + 0.6) = -0.34

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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