13x+7x^2+40=9x+2

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Solution for 13x+7x^2+40=9x+2 equation:


Simplifying
13x + 7x2 + 40 = 9x + 2

Reorder the terms:
40 + 13x + 7x2 = 9x + 2

Reorder the terms:
40 + 13x + 7x2 = 2 + 9x

Solving
40 + 13x + 7x2 = 2 + 9x

Solving for variable 'x'.

Reorder the terms:
40 + -2 + 13x + -9x + 7x2 = 2 + 9x + -2 + -9x

Combine like terms: 40 + -2 = 38
38 + 13x + -9x + 7x2 = 2 + 9x + -2 + -9x

Combine like terms: 13x + -9x = 4x
38 + 4x + 7x2 = 2 + 9x + -2 + -9x

Reorder the terms:
38 + 4x + 7x2 = 2 + -2 + 9x + -9x

Combine like terms: 2 + -2 = 0
38 + 4x + 7x2 = 0 + 9x + -9x
38 + 4x + 7x2 = 9x + -9x

Combine like terms: 9x + -9x = 0
38 + 4x + 7x2 = 0

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

Divide each side by '7'.
5.428571429 + 0.5714285714x + x2 = 0

Move the constant term to the right:

Add '-5.428571429' to each side of the equation.
5.428571429 + 0.5714285714x + -5.428571429 + x2 = 0 + -5.428571429

Reorder the terms:
5.428571429 + -5.428571429 + 0.5714285714x + x2 = 0 + -5.428571429

Combine like terms: 5.428571429 + -5.428571429 = 0.000000000
0.000000000 + 0.5714285714x + x2 = 0 + -5.428571429
0.5714285714x + x2 = 0 + -5.428571429

Combine like terms: 0 + -5.428571429 = -5.428571429
0.5714285714x + x2 = -5.428571429

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 = -5.428571429 + 0.08163265305

Reorder the terms:
0.08163265305 + 0.5714285714x + x2 = -5.428571429 + 0.08163265305

Combine like terms: -5.428571429 + 0.08163265305 = -5.34693877595
0.08163265305 + 0.5714285714x + x2 = -5.34693877595

Factor a perfect square on the left side:
(x + 0.2857142857)(x + 0.2857142857) = -5.34693877595

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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