2x^2+8x-4+-5x+6=0

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Solution for 2x^2+8x-4+-5x+6=0 equation:


Simplifying
2x2 + 8x + -4 + -5x + 6 = 0

Reorder the terms:
-4 + 6 + 8x + -5x + 2x2 = 0

Combine like terms: -4 + 6 = 2
2 + 8x + -5x + 2x2 = 0

Combine like terms: 8x + -5x = 3x
2 + 3x + 2x2 = 0

Solving
2 + 3x + 2x2 = 0

Solving for variable 'x'.

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

Divide each side by '2'.
1 + 1.5x + x2 = 0

Move the constant term to the right:

Add '-1' to each side of the equation.
1 + 1.5x + -1 + x2 = 0 + -1

Reorder the terms:
1 + -1 + 1.5x + x2 = 0 + -1

Combine like terms: 1 + -1 = 0
0 + 1.5x + x2 = 0 + -1
1.5x + x2 = 0 + -1

Combine like terms: 0 + -1 = -1
1.5x + x2 = -1

The x term is 1.5x.  Take half its coefficient (0.75).
Square it (0.5625) and add it to both sides.

Add '0.5625' to each side of the equation.
1.5x + 0.5625 + x2 = -1 + 0.5625

Reorder the terms:
0.5625 + 1.5x + x2 = -1 + 0.5625

Combine like terms: -1 + 0.5625 = -0.4375
0.5625 + 1.5x + x2 = -0.4375

Factor a perfect square on the left side:
(x + 0.75)(x + 0.75) = -0.4375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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