60x-2x^2=22x+91

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Solution for 60x-2x^2=22x+91 equation:


Simplifying
60x + -2x2 = 22x + 91

Reorder the terms:
60x + -2x2 = 91 + 22x

Solving
60x + -2x2 = 91 + 22x

Solving for variable 'x'.

Reorder the terms:
-91 + 60x + -22x + -2x2 = 91 + 22x + -91 + -22x

Combine like terms: 60x + -22x = 38x
-91 + 38x + -2x2 = 91 + 22x + -91 + -22x

Reorder the terms:
-91 + 38x + -2x2 = 91 + -91 + 22x + -22x

Combine like terms: 91 + -91 = 0
-91 + 38x + -2x2 = 0 + 22x + -22x
-91 + 38x + -2x2 = 22x + -22x

Combine like terms: 22x + -22x = 0
-91 + 38x + -2x2 = 0

Begin completing the square.  Divide all terms by
-2 the coefficient of the squared term: 

Divide each side by '-2'.
45.5 + -19x + x2 = 0

Move the constant term to the right:

Add '-45.5' to each side of the equation.
45.5 + -19x + -45.5 + x2 = 0 + -45.5

Reorder the terms:
45.5 + -45.5 + -19x + x2 = 0 + -45.5

Combine like terms: 45.5 + -45.5 = 0.0
0.0 + -19x + x2 = 0 + -45.5
-19x + x2 = 0 + -45.5

Combine like terms: 0 + -45.5 = -45.5
-19x + x2 = -45.5

The x term is -19x.  Take half its coefficient (-9.5).
Square it (90.25) and add it to both sides.

Add '90.25' to each side of the equation.
-19x + 90.25 + x2 = -45.5 + 90.25

Reorder the terms:
90.25 + -19x + x2 = -45.5 + 90.25

Combine like terms: -45.5 + 90.25 = 44.75
90.25 + -19x + x2 = 44.75

Factor a perfect square on the left side:
(x + -9.5)(x + -9.5) = 44.75

Calculate the square root of the right side: 6.68954408

Break this problem into two subproblems by setting 
(x + -9.5) equal to 6.68954408 and -6.68954408.

Subproblem 1

x + -9.5 = 6.68954408 Simplifying x + -9.5 = 6.68954408 Reorder the terms: -9.5 + x = 6.68954408 Solving -9.5 + x = 6.68954408 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '9.5' to each side of the equation. -9.5 + 9.5 + x = 6.68954408 + 9.5 Combine like terms: -9.5 + 9.5 = 0.0 0.0 + x = 6.68954408 + 9.5 x = 6.68954408 + 9.5 Combine like terms: 6.68954408 + 9.5 = 16.18954408 x = 16.18954408 Simplifying x = 16.18954408

Subproblem 2

x + -9.5 = -6.68954408 Simplifying x + -9.5 = -6.68954408 Reorder the terms: -9.5 + x = -6.68954408 Solving -9.5 + x = -6.68954408 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '9.5' to each side of the equation. -9.5 + 9.5 + x = -6.68954408 + 9.5 Combine like terms: -9.5 + 9.5 = 0.0 0.0 + x = -6.68954408 + 9.5 x = -6.68954408 + 9.5 Combine like terms: -6.68954408 + 9.5 = 2.81045592 x = 2.81045592 Simplifying x = 2.81045592

Solution

The solution to the problem is based on the solutions from the subproblems. x = {16.18954408, 2.81045592}

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