4x+169=-2x^2+48x

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Solution for 4x+169=-2x^2+48x equation:


Simplifying
4x + 169 = -2x2 + 48x

Reorder the terms:
169 + 4x = -2x2 + 48x

Reorder the terms:
169 + 4x = 48x + -2x2

Solving
169 + 4x = 48x + -2x2

Solving for variable 'x'.

Combine like terms: 4x + -48x = -44x
169 + -44x + 2x2 = 48x + -2x2 + -48x + 2x2

Reorder the terms:
169 + -44x + 2x2 = 48x + -48x + -2x2 + 2x2

Combine like terms: 48x + -48x = 0
169 + -44x + 2x2 = 0 + -2x2 + 2x2
169 + -44x + 2x2 = -2x2 + 2x2

Combine like terms: -2x2 + 2x2 = 0
169 + -44x + 2x2 = 0

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

Divide each side by '2'.
84.5 + -22x + x2 = 0

Move the constant term to the right:

Add '-84.5' to each side of the equation.
84.5 + -22x + -84.5 + x2 = 0 + -84.5

Reorder the terms:
84.5 + -84.5 + -22x + x2 = 0 + -84.5

Combine like terms: 84.5 + -84.5 = 0.0
0.0 + -22x + x2 = 0 + -84.5
-22x + x2 = 0 + -84.5

Combine like terms: 0 + -84.5 = -84.5
-22x + x2 = -84.5

The x term is -22x.  Take half its coefficient (-11).
Square it (121) and add it to both sides.

Add '121' to each side of the equation.
-22x + 121 + x2 = -84.5 + 121

Reorder the terms:
121 + -22x + x2 = -84.5 + 121

Combine like terms: -84.5 + 121 = 36.5
121 + -22x + x2 = 36.5

Factor a perfect square on the left side:
(x + -11)(x + -11) = 36.5

Calculate the square root of the right side: 6.041522987

Break this problem into two subproblems by setting 
(x + -11) equal to 6.041522987 and -6.041522987.

Subproblem 1

x + -11 = 6.041522987 Simplifying x + -11 = 6.041522987 Reorder the terms: -11 + x = 6.041522987 Solving -11 + x = 6.041522987 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '11' to each side of the equation. -11 + 11 + x = 6.041522987 + 11 Combine like terms: -11 + 11 = 0 0 + x = 6.041522987 + 11 x = 6.041522987 + 11 Combine like terms: 6.041522987 + 11 = 17.041522987 x = 17.041522987 Simplifying x = 17.041522987

Subproblem 2

x + -11 = -6.041522987 Simplifying x + -11 = -6.041522987 Reorder the terms: -11 + x = -6.041522987 Solving -11 + x = -6.041522987 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '11' to each side of the equation. -11 + 11 + x = -6.041522987 + 11 Combine like terms: -11 + 11 = 0 0 + x = -6.041522987 + 11 x = -6.041522987 + 11 Combine like terms: -6.041522987 + 11 = 4.958477013 x = 4.958477013 Simplifying x = 4.958477013

Solution

The solution to the problem is based on the solutions from the subproblems. x = {17.041522987, 4.958477013}

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