(.013x^2)-1.19x+28.24=9

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Solution for (.013x^2)-1.19x+28.24=9 equation:


Simplifying
(0.013x2) + -1.19x + 28.24 = 9

Reorder the terms:
28.24 + -1.19x + (0.013x2) = 9

Solving
28.24 + -1.19x + (0.013x2) = 9

Solving for variable 'x'.

Reorder the terms:
28.24 + -9 + -1.19x + (0.013x2) = 9 + -9

Combine like terms: 28.24 + -9 = 19.24
19.24 + -1.19x + (0.013x2) = 9 + -9

Combine like terms: 9 + -9 = 0
19.24 + -1.19x + (0.013x2) = 0

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

Divide each side by '0.013'.
1480 + -91.53846154x + x2 = 0

Move the constant term to the right:

Add '-1480' to each side of the equation.
1480 + -91.53846154x + -1480 + x2 = 0 + -1480

Reorder the terms:
1480 + -1480 + -91.53846154x + x2 = 0 + -1480

Combine like terms: 1480 + -1480 = 0
0 + -91.53846154x + x2 = 0 + -1480
-91.53846154x + x2 = 0 + -1480

Combine like terms: 0 + -1480 = -1480
-91.53846154x + x2 = -1480

The x term is -91.53846154x.  Take half its coefficient (-45.76923077).
Square it (2094.822485) and add it to both sides.

Add '2094.822485' to each side of the equation.
-91.53846154x + 2094.822485 + x2 = -1480 + 2094.822485

Reorder the terms:
2094.822485 + -91.53846154x + x2 = -1480 + 2094.822485

Combine like terms: -1480 + 2094.822485 = 614.822485
2094.822485 + -91.53846154x + x2 = 614.822485

Factor a perfect square on the left side:
((x) + -45.76923077)((x) + -45.76923077) = 614.822485

Calculate the square root of the right side: 24.795614229

Break this problem into two subproblems by setting 
((x) + -45.76923077) equal to 24.795614229 and -24.795614229.

Subproblem 1

(x) + -45.76923077 = 24.795614229 Simplifying (x) + -45.76923077 = 24.795614229 x + -45.76923077 = 24.795614229 Reorder the terms: -45.76923077 + x = 24.795614229 Solving -45.76923077 + x = 24.795614229 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '45.76923077' to each side of the equation. -45.76923077 + 45.76923077 + x = 24.795614229 + 45.76923077 Combine like terms: -45.76923077 + 45.76923077 = 0.00000000 0.00000000 + x = 24.795614229 + 45.76923077 x = 24.795614229 + 45.76923077 Combine like terms: 24.795614229 + 45.76923077 = 70.564844999 x = 70.564844999 Simplifying x = 70.564844999

Subproblem 2

(x) + -45.76923077 = -24.795614229 Simplifying (x) + -45.76923077 = -24.795614229 x + -45.76923077 = -24.795614229 Reorder the terms: -45.76923077 + x = -24.795614229 Solving -45.76923077 + x = -24.795614229 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '45.76923077' to each side of the equation. -45.76923077 + 45.76923077 + x = -24.795614229 + 45.76923077 Combine like terms: -45.76923077 + 45.76923077 = 0.00000000 0.00000000 + x = -24.795614229 + 45.76923077 x = -24.795614229 + 45.76923077 Combine like terms: -24.795614229 + 45.76923077 = 20.973616541 x = 20.973616541 Simplifying x = 20.973616541

Solution

The solution to the problem is based on the solutions from the subproblems. x = {70.564844999, 20.973616541}

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