(2x^2-6x+3)+(5x^2+2x+5)=

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Solution for (2x^2-6x+3)+(5x^2+2x+5)= equation:


Simplifying
(2x2 + -6x + 3) + (5x2 + 2x + 5) = 0

Reorder the terms:
(3 + -6x + 2x2) + (5x2 + 2x + 5) = 0

Remove parenthesis around (3 + -6x + 2x2)
3 + -6x + 2x2 + (5x2 + 2x + 5) = 0

Reorder the terms:
3 + -6x + 2x2 + (5 + 2x + 5x2) = 0

Remove parenthesis around (5 + 2x + 5x2)
3 + -6x + 2x2 + 5 + 2x + 5x2 = 0

Reorder the terms:
3 + 5 + -6x + 2x + 2x2 + 5x2 = 0

Combine like terms: 3 + 5 = 8
8 + -6x + 2x + 2x2 + 5x2 = 0

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

Combine like terms: 2x2 + 5x2 = 7x2
8 + -4x + 7x2 = 0

Solving
8 + -4x + 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'.
1.142857143 + -0.5714285714x + x2 = 0

Move the constant term to the right:

Add '-1.142857143' to each side of the equation.
1.142857143 + -0.5714285714x + -1.142857143 + x2 = 0 + -1.142857143

Reorder the terms:
1.142857143 + -1.142857143 + -0.5714285714x + x2 = 0 + -1.142857143

Combine like terms: 1.142857143 + -1.142857143 = 0.000000000
0.000000000 + -0.5714285714x + x2 = 0 + -1.142857143
-0.5714285714x + x2 = 0 + -1.142857143

Combine like terms: 0 + -1.142857143 = -1.142857143
-0.5714285714x + x2 = -1.142857143

The x term is -0.5714285714x.  Take half its coefficient (-0.2857142857).
Square it (0.08163265305) and add it to both sides.

Add '0.08163265305' to each side of the equation.
-0.5714285714x + 0.08163265305 + x2 = -1.142857143 + 0.08163265305

Reorder the terms:
0.08163265305 + -0.5714285714x + x2 = -1.142857143 + 0.08163265305

Combine like terms: -1.142857143 + 0.08163265305 = -1.06122448995
0.08163265305 + -0.5714285714x + x2 = -1.06122448995

Factor a perfect square on the left side:
(x + -0.2857142857)(x + -0.2857142857) = -1.06122448995

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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