5x^2-6x+7+8x+4+5x^2=

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Solution for 5x^2-6x+7+8x+4+5x^2= equation:


Simplifying
5x2 + -6x + 7 + 8x + 4 + 5x2 = 0

Reorder the terms:
7 + 4 + -6x + 8x + 5x2 + 5x2 = 0

Combine like terms: 7 + 4 = 11
11 + -6x + 8x + 5x2 + 5x2 = 0

Combine like terms: -6x + 8x = 2x
11 + 2x + 5x2 + 5x2 = 0

Combine like terms: 5x2 + 5x2 = 10x2
11 + 2x + 10x2 = 0

Solving
11 + 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'.
1.1 + 0.2x + x2 = 0.0

Move the constant term to the right:

Add '-1.1' to each side of the equation.
1.1 + 0.2x + -1.1 + x2 = 0.0 + -1.1

Reorder the terms:
1.1 + -1.1 + 0.2x + x2 = 0.0 + -1.1

Combine like terms: 1.1 + -1.1 = 0.0
0.0 + 0.2x + x2 = 0.0 + -1.1
0.2x + x2 = 0.0 + -1.1

Combine like terms: 0.0 + -1.1 = -1.1
0.2x + x2 = -1.1

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 = -1.1 + 0.01

Reorder the terms:
0.01 + 0.2x + x2 = -1.1 + 0.01

Combine like terms: -1.1 + 0.01 = -1.09
0.01 + 0.2x + x2 = -1.09

Factor a perfect square on the left side:
(x + 0.1)(x + 0.1) = -1.09

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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