9x^2-8x+2=110

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Solution for 9x^2-8x+2=110 equation:


Simplifying
9x2 + -8x + 2 = 110

Reorder the terms:
2 + -8x + 9x2 = 110

Solving
2 + -8x + 9x2 = 110

Solving for variable 'x'.

Reorder the terms:
2 + -110 + -8x + 9x2 = 110 + -110

Combine like terms: 2 + -110 = -108
-108 + -8x + 9x2 = 110 + -110

Combine like terms: 110 + -110 = 0
-108 + -8x + 9x2 = 0

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

Divide each side by '9'.
-12 + -0.8888888889x + x2 = 0

Move the constant term to the right:

Add '12' to each side of the equation.
-12 + -0.8888888889x + 12 + x2 = 0 + 12

Reorder the terms:
-12 + 12 + -0.8888888889x + x2 = 0 + 12

Combine like terms: -12 + 12 = 0
0 + -0.8888888889x + x2 = 0 + 12
-0.8888888889x + x2 = 0 + 12

Combine like terms: 0 + 12 = 12
-0.8888888889x + x2 = 12

The x term is -0.8888888889x.  Take half its coefficient (-0.4444444445).
Square it (0.1975308642) and add it to both sides.

Add '0.1975308642' to each side of the equation.
-0.8888888889x + 0.1975308642 + x2 = 12 + 0.1975308642

Reorder the terms:
0.1975308642 + -0.8888888889x + x2 = 12 + 0.1975308642

Combine like terms: 12 + 0.1975308642 = 12.1975308642
0.1975308642 + -0.8888888889x + x2 = 12.1975308642

Factor a perfect square on the left side:
(x + -0.4444444445)(x + -0.4444444445) = 12.1975308642

Calculate the square root of the right side: 3.492496366

Break this problem into two subproblems by setting 
(x + -0.4444444445) equal to 3.492496366 and -3.492496366.

Subproblem 1

x + -0.4444444445 = 3.492496366 Simplifying x + -0.4444444445 = 3.492496366 Reorder the terms: -0.4444444445 + x = 3.492496366 Solving -0.4444444445 + x = 3.492496366 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.4444444445' to each side of the equation. -0.4444444445 + 0.4444444445 + x = 3.492496366 + 0.4444444445 Combine like terms: -0.4444444445 + 0.4444444445 = 0.0000000000 0.0000000000 + x = 3.492496366 + 0.4444444445 x = 3.492496366 + 0.4444444445 Combine like terms: 3.492496366 + 0.4444444445 = 3.9369408105 x = 3.9369408105 Simplifying x = 3.9369408105

Subproblem 2

x + -0.4444444445 = -3.492496366 Simplifying x + -0.4444444445 = -3.492496366 Reorder the terms: -0.4444444445 + x = -3.492496366 Solving -0.4444444445 + x = -3.492496366 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.4444444445' to each side of the equation. -0.4444444445 + 0.4444444445 + x = -3.492496366 + 0.4444444445 Combine like terms: -0.4444444445 + 0.4444444445 = 0.0000000000 0.0000000000 + x = -3.492496366 + 0.4444444445 x = -3.492496366 + 0.4444444445 Combine like terms: -3.492496366 + 0.4444444445 = -3.0480519215 x = -3.0480519215 Simplifying x = -3.0480519215

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.9369408105, -3.0480519215}

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