49x^2-14x=6

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Solution for 49x^2-14x=6 equation:


Simplifying
49x2 + -14x = 6

Reorder the terms:
-14x + 49x2 = 6

Solving
-14x + 49x2 = 6

Solving for variable 'x'.

Reorder the terms:
-6 + -14x + 49x2 = 6 + -6

Combine like terms: 6 + -6 = 0
-6 + -14x + 49x2 = 0

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

Divide each side by '49'.
-0.1224489796 + -0.2857142857x + x2 = 0

Move the constant term to the right:

Add '0.1224489796' to each side of the equation.
-0.1224489796 + -0.2857142857x + 0.1224489796 + x2 = 0 + 0.1224489796

Reorder the terms:
-0.1224489796 + 0.1224489796 + -0.2857142857x + x2 = 0 + 0.1224489796

Combine like terms: -0.1224489796 + 0.1224489796 = 0.0000000000
0.0000000000 + -0.2857142857x + x2 = 0 + 0.1224489796
-0.2857142857x + x2 = 0 + 0.1224489796

Combine like terms: 0 + 0.1224489796 = 0.1224489796
-0.2857142857x + x2 = 0.1224489796

The x term is -0.2857142857x.  Take half its coefficient (-0.1428571429).
Square it (0.02040816328) and add it to both sides.

Add '0.02040816328' to each side of the equation.
-0.2857142857x + 0.02040816328 + x2 = 0.1224489796 + 0.02040816328

Reorder the terms:
0.02040816328 + -0.2857142857x + x2 = 0.1224489796 + 0.02040816328

Combine like terms: 0.1224489796 + 0.02040816328 = 0.14285714288
0.02040816328 + -0.2857142857x + x2 = 0.14285714288

Factor a perfect square on the left side:
(x + -0.1428571429)(x + -0.1428571429) = 0.14285714288

Calculate the square root of the right side: 0.377964473

Break this problem into two subproblems by setting 
(x + -0.1428571429) equal to 0.377964473 and -0.377964473.

Subproblem 1

x + -0.1428571429 = 0.377964473 Simplifying x + -0.1428571429 = 0.377964473 Reorder the terms: -0.1428571429 + x = 0.377964473 Solving -0.1428571429 + x = 0.377964473 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.1428571429' to each side of the equation. -0.1428571429 + 0.1428571429 + x = 0.377964473 + 0.1428571429 Combine like terms: -0.1428571429 + 0.1428571429 = 0.0000000000 0.0000000000 + x = 0.377964473 + 0.1428571429 x = 0.377964473 + 0.1428571429 Combine like terms: 0.377964473 + 0.1428571429 = 0.5208216159 x = 0.5208216159 Simplifying x = 0.5208216159

Subproblem 2

x + -0.1428571429 = -0.377964473 Simplifying x + -0.1428571429 = -0.377964473 Reorder the terms: -0.1428571429 + x = -0.377964473 Solving -0.1428571429 + x = -0.377964473 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.1428571429' to each side of the equation. -0.1428571429 + 0.1428571429 + x = -0.377964473 + 0.1428571429 Combine like terms: -0.1428571429 + 0.1428571429 = 0.0000000000 0.0000000000 + x = -0.377964473 + 0.1428571429 x = -0.377964473 + 0.1428571429 Combine like terms: -0.377964473 + 0.1428571429 = -0.2351073301 x = -0.2351073301 Simplifying x = -0.2351073301

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.5208216159, -0.2351073301}

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