x*(x-0.10)=60

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Solution for x*(x-0.10)=60 equation:


Simplifying
x(x + -0.10) = 60

Reorder the terms:
x(-0.10 + x) = 60
(-0.10 * x + x * x) = 60
(-0.10x + x2) = 60

Solving
-0.10x + x2 = 60

Solving for variable 'x'.

Reorder the terms:
-60 + -0.10x + x2 = 60 + -60

Combine like terms: 60 + -60 = 0
-60 + -0.10x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '60' to each side of the equation.
-60 + -0.10x + 60 + x2 = 0 + 60

Reorder the terms:
-60 + 60 + -0.10x + x2 = 0 + 60

Combine like terms: -60 + 60 = 0
0 + -0.10x + x2 = 0 + 60
-0.10x + x2 = 0 + 60

Combine like terms: 0 + 60 = 60
-0.10x + x2 = 60

The x term is -0.10x.  Take half its coefficient (-0.05).
Square it (0.0025) and add it to both sides.

Add '0.0025' to each side of the equation.
-0.10x + 0.0025 + x2 = 60 + 0.0025

Reorder the terms:
0.0025 + -0.10x + x2 = 60 + 0.0025

Combine like terms: 60 + 0.0025 = 60.0025
0.0025 + -0.10x + x2 = 60.0025

Factor a perfect square on the left side:
(x + -0.05)(x + -0.05) = 60.0025

Calculate the square root of the right side: 7.746128065

Break this problem into two subproblems by setting 
(x + -0.05) equal to 7.746128065 and -7.746128065.

Subproblem 1

x + -0.05 = 7.746128065 Simplifying x + -0.05 = 7.746128065 Reorder the terms: -0.05 + x = 7.746128065 Solving -0.05 + x = 7.746128065 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.05' to each side of the equation. -0.05 + 0.05 + x = 7.746128065 + 0.05 Combine like terms: -0.05 + 0.05 = 0.00 0.00 + x = 7.746128065 + 0.05 x = 7.746128065 + 0.05 Combine like terms: 7.746128065 + 0.05 = 7.796128065 x = 7.796128065 Simplifying x = 7.796128065

Subproblem 2

x + -0.05 = -7.746128065 Simplifying x + -0.05 = -7.746128065 Reorder the terms: -0.05 + x = -7.746128065 Solving -0.05 + x = -7.746128065 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.05' to each side of the equation. -0.05 + 0.05 + x = -7.746128065 + 0.05 Combine like terms: -0.05 + 0.05 = 0.00 0.00 + x = -7.746128065 + 0.05 x = -7.746128065 + 0.05 Combine like terms: -7.746128065 + 0.05 = -7.696128065 x = -7.696128065 Simplifying x = -7.696128065

Solution

The solution to the problem is based on the solutions from the subproblems. x = {7.796128065, -7.696128065}

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