(3x^2-x-3)-(-4x^2-2x-4)=

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Solution for (3x^2-x-3)-(-4x^2-2x-4)= equation:


Simplifying
(3x2 + -1x + -3) + -1(-4x2 + -2x + -4) = 0

Reorder the terms:
(-3 + -1x + 3x2) + -1(-4x2 + -2x + -4) = 0

Remove parenthesis around (-3 + -1x + 3x2)
-3 + -1x + 3x2 + -1(-4x2 + -2x + -4) = 0

Reorder the terms:
-3 + -1x + 3x2 + -1(-4 + -2x + -4x2) = 0
-3 + -1x + 3x2 + (-4 * -1 + -2x * -1 + -4x2 * -1) = 0
-3 + -1x + 3x2 + (4 + 2x + 4x2) = 0

Reorder the terms:
-3 + 4 + -1x + 2x + 3x2 + 4x2 = 0

Combine like terms: -3 + 4 = 1
1 + -1x + 2x + 3x2 + 4x2 = 0

Combine like terms: -1x + 2x = 1x
1 + 1x + 3x2 + 4x2 = 0

Combine like terms: 3x2 + 4x2 = 7x2
1 + 1x + 7x2 = 0

Solving
1 + 1x + 7x2 = 0

Solving for variable 'x'.

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

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

Move the constant term to the right:

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

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

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

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

The x term is 0.1428571429x.  Take half its coefficient (0.07142857145).
Square it (0.005102040819) and add it to both sides.

Add '0.005102040819' to each side of the equation.
0.1428571429x + 0.005102040819 + x2 = -0.1428571429 + 0.005102040819

Reorder the terms:
0.005102040819 + 0.1428571429x + x2 = -0.1428571429 + 0.005102040819

Combine like terms: -0.1428571429 + 0.005102040819 = -0.137755102081
0.005102040819 + 0.1428571429x + x2 = -0.137755102081

Factor a perfect square on the left side:
(x + 0.07142857145)(x + 0.07142857145) = -0.137755102081

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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