9x^2-144x+16=0

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Solution for 9x^2-144x+16=0 equation:


Simplifying
9x2 + -144x + 16 = 0

Reorder the terms:
16 + -144x + 9x2 = 0

Solving
16 + -144x + 9x2 = 0

Solving for variable 'x'.

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

Divide each side by '9'.
1.777777778 + -16x + x2 = 0

Move the constant term to the right:

Add '-1.777777778' to each side of the equation.
1.777777778 + -16x + -1.777777778 + x2 = 0 + -1.777777778

Reorder the terms:
1.777777778 + -1.777777778 + -16x + x2 = 0 + -1.777777778

Combine like terms: 1.777777778 + -1.777777778 = 0.000000000
0.000000000 + -16x + x2 = 0 + -1.777777778
-16x + x2 = 0 + -1.777777778

Combine like terms: 0 + -1.777777778 = -1.777777778
-16x + x2 = -1.777777778

The x term is -16x.  Take half its coefficient (-8).
Square it (64) and add it to both sides.

Add '64' to each side of the equation.
-16x + 64 + x2 = -1.777777778 + 64

Reorder the terms:
64 + -16x + x2 = -1.777777778 + 64

Combine like terms: -1.777777778 + 64 = 62.222222222
64 + -16x + x2 = 62.222222222

Factor a perfect square on the left side:
(x + -8)(x + -8) = 62.222222222

Calculate the square root of the right side: 7.888106377

Break this problem into two subproblems by setting 
(x + -8) equal to 7.888106377 and -7.888106377.

Subproblem 1

x + -8 = 7.888106377 Simplifying x + -8 = 7.888106377 Reorder the terms: -8 + x = 7.888106377 Solving -8 + x = 7.888106377 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '8' to each side of the equation. -8 + 8 + x = 7.888106377 + 8 Combine like terms: -8 + 8 = 0 0 + x = 7.888106377 + 8 x = 7.888106377 + 8 Combine like terms: 7.888106377 + 8 = 15.888106377 x = 15.888106377 Simplifying x = 15.888106377

Subproblem 2

x + -8 = -7.888106377 Simplifying x + -8 = -7.888106377 Reorder the terms: -8 + x = -7.888106377 Solving -8 + x = -7.888106377 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '8' to each side of the equation. -8 + 8 + x = -7.888106377 + 8 Combine like terms: -8 + 8 = 0 0 + x = -7.888106377 + 8 x = -7.888106377 + 8 Combine like terms: -7.888106377 + 8 = 0.111893623 x = 0.111893623 Simplifying x = 0.111893623

Solution

The solution to the problem is based on the solutions from the subproblems. x = {15.888106377, 0.111893623}

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