5x^2-34x+7=0

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Solution for 5x^2-34x+7=0 equation:


Simplifying
5x2 + -34x + 7 = 0

Reorder the terms:
7 + -34x + 5x2 = 0

Solving
7 + -34x + 5x2 = 0

Solving for variable 'x'.

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

Divide each side by '5'.
1.4 + -6.8x + x2 = 0

Move the constant term to the right:

Add '-1.4' to each side of the equation.
1.4 + -6.8x + -1.4 + x2 = 0 + -1.4

Reorder the terms:
1.4 + -1.4 + -6.8x + x2 = 0 + -1.4

Combine like terms: 1.4 + -1.4 = 0.0
0.0 + -6.8x + x2 = 0 + -1.4
-6.8x + x2 = 0 + -1.4

Combine like terms: 0 + -1.4 = -1.4
-6.8x + x2 = -1.4

The x term is -6.8x.  Take half its coefficient (-3.4).
Square it (11.56) and add it to both sides.

Add '11.56' to each side of the equation.
-6.8x + 11.56 + x2 = -1.4 + 11.56

Reorder the terms:
11.56 + -6.8x + x2 = -1.4 + 11.56

Combine like terms: -1.4 + 11.56 = 10.16
11.56 + -6.8x + x2 = 10.16

Factor a perfect square on the left side:
(x + -3.4)(x + -3.4) = 10.16

Calculate the square root of the right side: 3.18747549

Break this problem into two subproblems by setting 
(x + -3.4) equal to 3.18747549 and -3.18747549.

Subproblem 1

x + -3.4 = 3.18747549 Simplifying x + -3.4 = 3.18747549 Reorder the terms: -3.4 + x = 3.18747549 Solving -3.4 + x = 3.18747549 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.4' to each side of the equation. -3.4 + 3.4 + x = 3.18747549 + 3.4 Combine like terms: -3.4 + 3.4 = 0.0 0.0 + x = 3.18747549 + 3.4 x = 3.18747549 + 3.4 Combine like terms: 3.18747549 + 3.4 = 6.58747549 x = 6.58747549 Simplifying x = 6.58747549

Subproblem 2

x + -3.4 = -3.18747549 Simplifying x + -3.4 = -3.18747549 Reorder the terms: -3.4 + x = -3.18747549 Solving -3.4 + x = -3.18747549 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.4' to each side of the equation. -3.4 + 3.4 + x = -3.18747549 + 3.4 Combine like terms: -3.4 + 3.4 = 0.0 0.0 + x = -3.18747549 + 3.4 x = -3.18747549 + 3.4 Combine like terms: -3.18747549 + 3.4 = 0.21252451 x = 0.21252451 Simplifying x = 0.21252451

Solution

The solution to the problem is based on the solutions from the subproblems. x = {6.58747549, 0.21252451}

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