5x^2+2x^2+x+2=0

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Solution for 5x^2+2x^2+x+2=0 equation:


Simplifying
5x2 + 2x2 + x + 2 = 0

Reorder the terms:
2 + x + 5x2 + 2x2 = 0

Combine like terms: 5x2 + 2x2 = 7x2
2 + x + 7x2 = 0

Solving
2 + x + 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'.
0.2857142857 + 0.1428571429x + x2 = 0

Move the constant term to the right:

Add '-0.2857142857' to each side of the equation.
0.2857142857 + 0.1428571429x + -0.2857142857 + x2 = 0 + -0.2857142857

Reorder the terms:
0.2857142857 + -0.2857142857 + 0.1428571429x + x2 = 0 + -0.2857142857

Combine like terms: 0.2857142857 + -0.2857142857 = 0.0000000000
0.0000000000 + 0.1428571429x + x2 = 0 + -0.2857142857
0.1428571429x + x2 = 0 + -0.2857142857

Combine like terms: 0 + -0.2857142857 = -0.2857142857
0.1428571429x + x2 = -0.2857142857

The x term is x.  Take half its coefficient (0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
0.1428571429x + 0.25 + x2 = -0.2857142857 + 0.25

Reorder the terms:
0.25 + 0.1428571429x + x2 = -0.2857142857 + 0.25

Combine like terms: -0.2857142857 + 0.25 = -0.0357142857
0.25 + 0.1428571429x + x2 = -0.0357142857

Factor a perfect square on the left side:
(x + 0.5)(x + 0.5) = -0.0357142857

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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