(x^2+5x+2)+(2x^2-7x)=

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Solution for (x^2+5x+2)+(2x^2-7x)= equation: 


Simplifying
(x2 + 5x + 2) + (2x2 + -7x) = 0

Reorder the terms:
(2 + 5x + x2) + (2x2 + -7x) = 0

Remove parenthesis around (2 + 5x + x2)
2 + 5x + x2 + (2x2 + -7x) = 0

Reorder the terms:
2 + 5x + x2 + (-7x + 2x2) = 0

Remove parenthesis around (-7x + 2x2)
2 + 5x + x2 + -7x + 2x2 = 0

Reorder the terms:
2 + 5x + -7x + x2 + 2x2 = 0

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

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

Solving
2 + -2x + 3x2 = 0

Solving for variable 'x'.

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

Divide each side by '3'.
0.6666666667 + -0.6666666667x + x2 = 0

Move the constant term to the right:

Add '-0.6666666667' to each side of the equation.
0.6666666667 + -0.6666666667x + -0.6666666667 + x2 = 0 + -0.6666666667

Reorder the terms:
0.6666666667 + -0.6666666667 + -0.6666666667x + x2 = 0 + -0.6666666667

Combine like terms: 0.6666666667 + -0.6666666667 = 0.0000000000
0.0000000000 + -0.6666666667x + x2 = 0 + -0.6666666667
-0.6666666667x + x2 = 0 + -0.6666666667

Combine like terms: 0 + -0.6666666667 = -0.6666666667
-0.6666666667x + x2 = -0.6666666667

The x term is -0.6666666667x.  Take half its coefficient (-0.3333333334).
Square it (0.1111111112) and add it to both sides.

Add '0.1111111112' to each side of the equation.
-0.6666666667x + 0.1111111112 + x2 = -0.6666666667 + 0.1111111112

Reorder the terms:
0.1111111112 + -0.6666666667x + x2 = -0.6666666667 + 0.1111111112

Combine like terms: -0.6666666667 + 0.1111111112 = -0.5555555555
0.1111111112 + -0.6666666667x + x2 = -0.5555555555

Factor a perfect square on the left side:
(x + -0.3333333334)(x + -0.3333333334) = -0.5555555555

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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