(5x^2-x-1)-(-3x^2-2x-4)=

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Solution for (5x^2-x-1)-(-3x^2-2x-4)= equation:


Simplifying
(5x2 + -1x + -1) + -1(-3x2 + -2x + -4) = 0

Reorder the terms:
(-1 + -1x + 5x2) + -1(-3x2 + -2x + -4) = 0

Remove parenthesis around (-1 + -1x + 5x2)
-1 + -1x + 5x2 + -1(-3x2 + -2x + -4) = 0

Reorder the terms:
-1 + -1x + 5x2 + -1(-4 + -2x + -3x2) = 0
-1 + -1x + 5x2 + (-4 * -1 + -2x * -1 + -3x2 * -1) = 0
-1 + -1x + 5x2 + (4 + 2x + 3x2) = 0

Reorder the terms:
-1 + 4 + -1x + 2x + 5x2 + 3x2 = 0

Combine like terms: -1 + 4 = 3
3 + -1x + 2x + 5x2 + 3x2 = 0

Combine like terms: -1x + 2x = 1x
3 + 1x + 5x2 + 3x2 = 0

Combine like terms: 5x2 + 3x2 = 8x2
3 + 1x + 8x2 = 0

Solving
3 + 1x + 8x2 = 0

Solving for variable 'x'.

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

Divide each side by '8'.
0.375 + 0.125x + x2 = 0

Move the constant term to the right:

Add '-0.375' to each side of the equation.
0.375 + 0.125x + -0.375 + x2 = 0 + -0.375

Reorder the terms:
0.375 + -0.375 + 0.125x + x2 = 0 + -0.375

Combine like terms: 0.375 + -0.375 = 0.000
0.000 + 0.125x + x2 = 0 + -0.375
0.125x + x2 = 0 + -0.375

Combine like terms: 0 + -0.375 = -0.375
0.125x + x2 = -0.375

The x term is 0.125x.  Take half its coefficient (0.0625).
Square it (0.00390625) and add it to both sides.

Add '0.00390625' to each side of the equation.
0.125x + 0.00390625 + x2 = -0.375 + 0.00390625

Reorder the terms:
0.00390625 + 0.125x + x2 = -0.375 + 0.00390625

Combine like terms: -0.375 + 0.00390625 = -0.37109375
0.00390625 + 0.125x + x2 = -0.37109375

Factor a perfect square on the left side:
(x + 0.0625)(x + 0.0625) = -0.37109375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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