(5x^2+3x+4)+(2x^2-6x+3)=

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Solution for (5x^2+3x+4)+(2x^2-6x+3)= equation:


Simplifying
(5x2 + 3x + 4) + (2x2 + -6x + 3) = 0

Reorder the terms:
(4 + 3x + 5x2) + (2x2 + -6x + 3) = 0

Remove parenthesis around (4 + 3x + 5x2)
4 + 3x + 5x2 + (2x2 + -6x + 3) = 0

Reorder the terms:
4 + 3x + 5x2 + (3 + -6x + 2x2) = 0

Remove parenthesis around (3 + -6x + 2x2)
4 + 3x + 5x2 + 3 + -6x + 2x2 = 0

Reorder the terms:
4 + 3 + 3x + -6x + 5x2 + 2x2 = 0

Combine like terms: 4 + 3 = 7
7 + 3x + -6x + 5x2 + 2x2 = 0

Combine like terms: 3x + -6x = -3x
7 + -3x + 5x2 + 2x2 = 0

Combine like terms: 5x2 + 2x2 = 7x2
7 + -3x + 7x2 = 0

Solving
7 + -3x + 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 + -0.4285714286x + x2 = 0

Move the constant term to the right:

Add '-1' to each side of the equation.
1 + -0.4285714286x + -1 + x2 = 0 + -1

Reorder the terms:
1 + -1 + -0.4285714286x + x2 = 0 + -1

Combine like terms: 1 + -1 = 0
0 + -0.4285714286x + x2 = 0 + -1
-0.4285714286x + x2 = 0 + -1

Combine like terms: 0 + -1 = -1
-0.4285714286x + x2 = -1

The x term is -0.4285714286x.  Take half its coefficient (-0.2142857143).
Square it (0.04591836735) and add it to both sides.

Add '0.04591836735' to each side of the equation.
-0.4285714286x + 0.04591836735 + x2 = -1 + 0.04591836735

Reorder the terms:
0.04591836735 + -0.4285714286x + x2 = -1 + 0.04591836735

Combine like terms: -1 + 0.04591836735 = -0.95408163265
0.04591836735 + -0.4285714286x + x2 = -0.95408163265

Factor a perfect square on the left side:
(x + -0.2142857143)(x + -0.2142857143) = -0.95408163265

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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