49x^2+6x-4=0

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Solution for 49x^2+6x-4=0 equation:


Simplifying
49x2 + 6x + -4 = 0

Reorder the terms:
-4 + 6x + 49x2 = 0

Solving
-4 + 6x + 49x2 = 0

Solving for variable 'x'.

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

Divide each side by '49'.
-0.08163265306 + 0.1224489796x + x2 = 0

Move the constant term to the right:

Add '0.08163265306' to each side of the equation.
-0.08163265306 + 0.1224489796x + 0.08163265306 + x2 = 0 + 0.08163265306

Reorder the terms:
-0.08163265306 + 0.08163265306 + 0.1224489796x + x2 = 0 + 0.08163265306

Combine like terms: -0.08163265306 + 0.08163265306 = 0.00000000000
0.00000000000 + 0.1224489796x + x2 = 0 + 0.08163265306
0.1224489796x + x2 = 0 + 0.08163265306

Combine like terms: 0 + 0.08163265306 = 0.08163265306
0.1224489796x + x2 = 0.08163265306

The x term is 0.1224489796x.  Take half its coefficient (0.0612244898).
Square it (0.003748438151) and add it to both sides.

Add '0.003748438151' to each side of the equation.
0.1224489796x + 0.003748438151 + x2 = 0.08163265306 + 0.003748438151

Reorder the terms:
0.003748438151 + 0.1224489796x + x2 = 0.08163265306 + 0.003748438151

Combine like terms: 0.08163265306 + 0.003748438151 = 0.085381091211
0.003748438151 + 0.1224489796x + x2 = 0.085381091211

Factor a perfect square on the left side:
(x + 0.0612244898)(x + 0.0612244898) = 0.085381091211

Calculate the square root of the right side: 0.29220043

Break this problem into two subproblems by setting 
(x + 0.0612244898) equal to 0.29220043 and -0.29220043.

Subproblem 1

x + 0.0612244898 = 0.29220043 Simplifying x + 0.0612244898 = 0.29220043 Reorder the terms: 0.0612244898 + x = 0.29220043 Solving 0.0612244898 + x = 0.29220043 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.0612244898' to each side of the equation. 0.0612244898 + -0.0612244898 + x = 0.29220043 + -0.0612244898 Combine like terms: 0.0612244898 + -0.0612244898 = 0.0000000000 0.0000000000 + x = 0.29220043 + -0.0612244898 x = 0.29220043 + -0.0612244898 Combine like terms: 0.29220043 + -0.0612244898 = 0.2309759402 x = 0.2309759402 Simplifying x = 0.2309759402

Subproblem 2

x + 0.0612244898 = -0.29220043 Simplifying x + 0.0612244898 = -0.29220043 Reorder the terms: 0.0612244898 + x = -0.29220043 Solving 0.0612244898 + x = -0.29220043 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.0612244898' to each side of the equation. 0.0612244898 + -0.0612244898 + x = -0.29220043 + -0.0612244898 Combine like terms: 0.0612244898 + -0.0612244898 = 0.0000000000 0.0000000000 + x = -0.29220043 + -0.0612244898 x = -0.29220043 + -0.0612244898 Combine like terms: -0.29220043 + -0.0612244898 = -0.3534249198 x = -0.3534249198 Simplifying x = -0.3534249198

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.2309759402, -0.3534249198}

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