35x^2-144x+105=0

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Solution for 35x^2-144x+105=0 equation:


Simplifying
35x2 + -144x + 105 = 0

Reorder the terms:
105 + -144x + 35x2 = 0

Solving
105 + -144x + 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'.
3 + -4.114285714x + x2 = 0

Move the constant term to the right:

Add '-3' to each side of the equation.
3 + -4.114285714x + -3 + x2 = 0 + -3

Reorder the terms:
3 + -3 + -4.114285714x + x2 = 0 + -3

Combine like terms: 3 + -3 = 0
0 + -4.114285714x + x2 = 0 + -3
-4.114285714x + x2 = 0 + -3

Combine like terms: 0 + -3 = -3
-4.114285714x + x2 = -3

The x term is -4.114285714x.  Take half its coefficient (-2.057142857).
Square it (4.231836734) and add it to both sides.

Add '4.231836734' to each side of the equation.
-4.114285714x + 4.231836734 + x2 = -3 + 4.231836734

Reorder the terms:
4.231836734 + -4.114285714x + x2 = -3 + 4.231836734

Combine like terms: -3 + 4.231836734 = 1.231836734
4.231836734 + -4.114285714x + x2 = 1.231836734

Factor a perfect square on the left side:
(x + -2.057142857)(x + -2.057142857) = 1.231836734

Calculate the square root of the right side: 1.109881405

Break this problem into two subproblems by setting 
(x + -2.057142857) equal to 1.109881405 and -1.109881405.

Subproblem 1

x + -2.057142857 = 1.109881405 Simplifying x + -2.057142857 = 1.109881405 Reorder the terms: -2.057142857 + x = 1.109881405 Solving -2.057142857 + x = 1.109881405 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.057142857' to each side of the equation. -2.057142857 + 2.057142857 + x = 1.109881405 + 2.057142857 Combine like terms: -2.057142857 + 2.057142857 = 0.000000000 0.000000000 + x = 1.109881405 + 2.057142857 x = 1.109881405 + 2.057142857 Combine like terms: 1.109881405 + 2.057142857 = 3.167024262 x = 3.167024262 Simplifying x = 3.167024262

Subproblem 2

x + -2.057142857 = -1.109881405 Simplifying x + -2.057142857 = -1.109881405 Reorder the terms: -2.057142857 + x = -1.109881405 Solving -2.057142857 + x = -1.109881405 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.057142857' to each side of the equation. -2.057142857 + 2.057142857 + x = -1.109881405 + 2.057142857 Combine like terms: -2.057142857 + 2.057142857 = 0.000000000 0.000000000 + x = -1.109881405 + 2.057142857 x = -1.109881405 + 2.057142857 Combine like terms: -1.109881405 + 2.057142857 = 0.947261452 x = 0.947261452 Simplifying x = 0.947261452

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.167024262, 0.947261452}

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