0=4x^2+9x-241

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Solution for 0=4x^2+9x-241 equation:


Simplifying
0 = 4x2 + 9x + -241

Reorder the terms:
0 = -241 + 9x + 4x2

Solving
0 = -241 + 9x + 4x2

Solving for variable 'x'.

Combine like terms: 0 + 241 = 241
241 + -9x + -4x2 = -241 + 9x + 4x2 + 241 + -9x + -4x2

Reorder the terms:
241 + -9x + -4x2 = -241 + 241 + 9x + -9x + 4x2 + -4x2

Combine like terms: -241 + 241 = 0
241 + -9x + -4x2 = 0 + 9x + -9x + 4x2 + -4x2
241 + -9x + -4x2 = 9x + -9x + 4x2 + -4x2

Combine like terms: 9x + -9x = 0
241 + -9x + -4x2 = 0 + 4x2 + -4x2
241 + -9x + -4x2 = 4x2 + -4x2

Combine like terms: 4x2 + -4x2 = 0
241 + -9x + -4x2 = 0

Begin completing the square.  Divide all terms by
-4 the coefficient of the squared term: 

Divide each side by '-4'.
-60.25 + 2.25x + x2 = 0

Move the constant term to the right:

Add '60.25' to each side of the equation.
-60.25 + 2.25x + 60.25 + x2 = 0 + 60.25

Reorder the terms:
-60.25 + 60.25 + 2.25x + x2 = 0 + 60.25

Combine like terms: -60.25 + 60.25 = 0.00
0.00 + 2.25x + x2 = 0 + 60.25
2.25x + x2 = 0 + 60.25

Combine like terms: 0 + 60.25 = 60.25
2.25x + x2 = 60.25

The x term is 2.25x.  Take half its coefficient (1.125).
Square it (1.265625) and add it to both sides.

Add '1.265625' to each side of the equation.
2.25x + 1.265625 + x2 = 60.25 + 1.265625

Reorder the terms:
1.265625 + 2.25x + x2 = 60.25 + 1.265625

Combine like terms: 60.25 + 1.265625 = 61.515625
1.265625 + 2.25x + x2 = 61.515625

Factor a perfect square on the left side:
(x + 1.125)(x + 1.125) = 61.515625

Calculate the square root of the right side: 7.843189721

Break this problem into two subproblems by setting 
(x + 1.125) equal to 7.843189721 and -7.843189721.

Subproblem 1

x + 1.125 = 7.843189721 Simplifying x + 1.125 = 7.843189721 Reorder the terms: 1.125 + x = 7.843189721 Solving 1.125 + x = 7.843189721 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.125' to each side of the equation. 1.125 + -1.125 + x = 7.843189721 + -1.125 Combine like terms: 1.125 + -1.125 = 0.000 0.000 + x = 7.843189721 + -1.125 x = 7.843189721 + -1.125 Combine like terms: 7.843189721 + -1.125 = 6.718189721 x = 6.718189721 Simplifying x = 6.718189721

Subproblem 2

x + 1.125 = -7.843189721 Simplifying x + 1.125 = -7.843189721 Reorder the terms: 1.125 + x = -7.843189721 Solving 1.125 + x = -7.843189721 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.125' to each side of the equation. 1.125 + -1.125 + x = -7.843189721 + -1.125 Combine like terms: 1.125 + -1.125 = 0.000 0.000 + x = -7.843189721 + -1.125 x = -7.843189721 + -1.125 Combine like terms: -7.843189721 + -1.125 = -8.968189721 x = -8.968189721 Simplifying x = -8.968189721

Solution

The solution to the problem is based on the solutions from the subproblems. x = {6.718189721, -8.968189721}

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