(6x^2-2x-1)-(-4x^2-4x-6)=

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Solution for (6x^2-2x-1)-(-4x^2-4x-6)= equation:


Simplifying
(6x2 + -2x + -1) + -1(-4x2 + -4x + -6) = 0

Reorder the terms:
(-1 + -2x + 6x2) + -1(-4x2 + -4x + -6) = 0

Remove parenthesis around (-1 + -2x + 6x2)
-1 + -2x + 6x2 + -1(-4x2 + -4x + -6) = 0

Reorder the terms:
-1 + -2x + 6x2 + -1(-6 + -4x + -4x2) = 0
-1 + -2x + 6x2 + (-6 * -1 + -4x * -1 + -4x2 * -1) = 0
-1 + -2x + 6x2 + (6 + 4x + 4x2) = 0

Reorder the terms:
-1 + 6 + -2x + 4x + 6x2 + 4x2 = 0

Combine like terms: -1 + 6 = 5
5 + -2x + 4x + 6x2 + 4x2 = 0

Combine like terms: -2x + 4x = 2x
5 + 2x + 6x2 + 4x2 = 0

Combine like terms: 6x2 + 4x2 = 10x2
5 + 2x + 10x2 = 0

Solving
5 + 2x + 10x2 = 0

Solving for variable 'x'.

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

Divide each side by '10'.
0.5 + 0.2x + x2 = 0.0

Move the constant term to the right:

Add '-0.5' to each side of the equation.
0.5 + 0.2x + -0.5 + x2 = 0.0 + -0.5

Reorder the terms:
0.5 + -0.5 + 0.2x + x2 = 0.0 + -0.5

Combine like terms: 0.5 + -0.5 = 0.0
0.0 + 0.2x + x2 = 0.0 + -0.5
0.2x + x2 = 0.0 + -0.5

Combine like terms: 0.0 + -0.5 = -0.5
0.2x + x2 = -0.5

The x term is 0.2x.  Take half its coefficient (0.1).
Square it (0.01) and add it to both sides.

Add '0.01' to each side of the equation.
0.2x + 0.01 + x2 = -0.5 + 0.01

Reorder the terms:
0.01 + 0.2x + x2 = -0.5 + 0.01

Combine like terms: -0.5 + 0.01 = -0.49
0.01 + 0.2x + x2 = -0.49

Factor a perfect square on the left side:
(x + 0.1)(x + 0.1) = -0.49

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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