35x^2-2x-6=0

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Solution for 35x^2-2x-6=0 equation:


Simplifying
35x2 + -2x + -6 = 0

Reorder the terms:
-6 + -2x + 35x2 = 0

Solving
-6 + -2x + 35x2 = 0

Solving for variable 'x'.

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

Divide each side by '35'.
-0.1714285714 + -0.05714285714x + x2 = 0

Move the constant term to the right:

Add '0.1714285714' to each side of the equation.
-0.1714285714 + -0.05714285714x + 0.1714285714 + x2 = 0 + 0.1714285714

Reorder the terms:
-0.1714285714 + 0.1714285714 + -0.05714285714x + x2 = 0 + 0.1714285714

Combine like terms: -0.1714285714 + 0.1714285714 = 0.0000000000
0.0000000000 + -0.05714285714x + x2 = 0 + 0.1714285714
-0.05714285714x + x2 = 0 + 0.1714285714

Combine like terms: 0 + 0.1714285714 = 0.1714285714
-0.05714285714x + x2 = 0.1714285714

The x term is -0.05714285714x.  Take half its coefficient (-0.02857142857).
Square it (0.0008163265305) and add it to both sides.

Add '0.0008163265305' to each side of the equation.
-0.05714285714x + 0.0008163265305 + x2 = 0.1714285714 + 0.0008163265305

Reorder the terms:
0.0008163265305 + -0.05714285714x + x2 = 0.1714285714 + 0.0008163265305

Combine like terms: 0.1714285714 + 0.0008163265305 = 0.1722448979305
0.0008163265305 + -0.05714285714x + x2 = 0.1722448979305

Factor a perfect square on the left side:
(x + -0.02857142857)(x + -0.02857142857) = 0.1722448979305

Calculate the square root of the right side: 0.415023973

Break this problem into two subproblems by setting 
(x + -0.02857142857) equal to 0.415023973 and -0.415023973.

Subproblem 1

x + -0.02857142857 = 0.415023973 Simplifying x + -0.02857142857 = 0.415023973 Reorder the terms: -0.02857142857 + x = 0.415023973 Solving -0.02857142857 + x = 0.415023973 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.02857142857' to each side of the equation. -0.02857142857 + 0.02857142857 + x = 0.415023973 + 0.02857142857 Combine like terms: -0.02857142857 + 0.02857142857 = 0.00000000000 0.00000000000 + x = 0.415023973 + 0.02857142857 x = 0.415023973 + 0.02857142857 Combine like terms: 0.415023973 + 0.02857142857 = 0.44359540157 x = 0.44359540157 Simplifying x = 0.44359540157

Subproblem 2

x + -0.02857142857 = -0.415023973 Simplifying x + -0.02857142857 = -0.415023973 Reorder the terms: -0.02857142857 + x = -0.415023973 Solving -0.02857142857 + x = -0.415023973 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.02857142857' to each side of the equation. -0.02857142857 + 0.02857142857 + x = -0.415023973 + 0.02857142857 Combine like terms: -0.02857142857 + 0.02857142857 = 0.00000000000 0.00000000000 + x = -0.415023973 + 0.02857142857 x = -0.415023973 + 0.02857142857 Combine like terms: -0.415023973 + 0.02857142857 = -0.38645254443 x = -0.38645254443 Simplifying x = -0.38645254443

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.44359540157, -0.38645254443}

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