10x^2-69x+10=0

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Solution for 10x^2-69x+10=0 equation:


Simplifying
10x2 + -69x + 10 = 0

Reorder the terms:
10 + -69x + 10x2 = 0

Solving
10 + -69x + 10x2 = 0

Solving for variable 'x'.

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

Divide each side by '10'.
1 + -6.9x + x2 = 0

Move the constant term to the right:

Add '-1' to each side of the equation.
1 + -6.9x + -1 + x2 = 0 + -1

Reorder the terms:
1 + -1 + -6.9x + x2 = 0 + -1

Combine like terms: 1 + -1 = 0
0 + -6.9x + x2 = 0 + -1
-6.9x + x2 = 0 + -1

Combine like terms: 0 + -1 = -1
-6.9x + x2 = -1

The x term is -6.9x.  Take half its coefficient (-3.45).
Square it (11.9025) and add it to both sides.

Add '11.9025' to each side of the equation.
-6.9x + 11.9025 + x2 = -1 + 11.9025

Reorder the terms:
11.9025 + -6.9x + x2 = -1 + 11.9025

Combine like terms: -1 + 11.9025 = 10.9025
11.9025 + -6.9x + x2 = 10.9025

Factor a perfect square on the left side:
(x + -3.45)(x + -3.45) = 10.9025

Calculate the square root of the right side: 3.301893396

Break this problem into two subproblems by setting 
(x + -3.45) equal to 3.301893396 and -3.301893396.

Subproblem 1

x + -3.45 = 3.301893396 Simplifying x + -3.45 = 3.301893396 Reorder the terms: -3.45 + x = 3.301893396 Solving -3.45 + x = 3.301893396 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.45' to each side of the equation. -3.45 + 3.45 + x = 3.301893396 + 3.45 Combine like terms: -3.45 + 3.45 = 0.00 0.00 + x = 3.301893396 + 3.45 x = 3.301893396 + 3.45 Combine like terms: 3.301893396 + 3.45 = 6.751893396 x = 6.751893396 Simplifying x = 6.751893396

Subproblem 2

x + -3.45 = -3.301893396 Simplifying x + -3.45 = -3.301893396 Reorder the terms: -3.45 + x = -3.301893396 Solving -3.45 + x = -3.301893396 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.45' to each side of the equation. -3.45 + 3.45 + x = -3.301893396 + 3.45 Combine like terms: -3.45 + 3.45 = 0.00 0.00 + x = -3.301893396 + 3.45 x = -3.301893396 + 3.45 Combine like terms: -3.301893396 + 3.45 = 0.148106604 x = 0.148106604 Simplifying x = 0.148106604

Solution

The solution to the problem is based on the solutions from the subproblems. x = {6.751893396, 0.148106604}

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