x^2-1.6x+0.64=

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Solution for x^2-1.6x+0.64= equation:


Simplifying
x2 + -1.6x + 0.64 = 0

Reorder the terms:
0.64 + -1.6x + x2 = 0

Solving
0.64 + -1.6x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-0.64' to each side of the equation.
0.64 + -1.6x + -0.64 + x2 = 0 + -0.64

Reorder the terms:
0.64 + -0.64 + -1.6x + x2 = 0 + -0.64

Combine like terms: 0.64 + -0.64 = 0.00
0.00 + -1.6x + x2 = 0 + -0.64
-1.6x + x2 = 0 + -0.64

Combine like terms: 0 + -0.64 = -0.64
-1.6x + x2 = -0.64

The x term is -1.6x.  Take half its coefficient (-0.8).
Square it (0.64) and add it to both sides.

Add '0.64' to each side of the equation.
-1.6x + 0.64 + x2 = -0.64 + 0.64

Reorder the terms:
0.64 + -1.6x + x2 = -0.64 + 0.64

Combine like terms: -0.64 + 0.64 = 0.00
0.64 + -1.6x + x2 = 0.00

Factor a perfect square on the left side:
(x + -0.8)(x + -0.8) = 0.00

Calculate the square root of the right side: 0.00

Break this problem into two subproblems by setting 
(x + -0.8) equal to 0.00 and 0.00.

Subproblem 1

x + -0.8 = 0.00 Simplifying x + -0.8 = 0.00 Reorder the terms: -0.8 + x = 0.00 Solving -0.8 + x = 0.00 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.8' to each side of the equation. -0.8 + 0.8 + x = 0.00 + 0.8 Combine like terms: -0.8 + 0.8 = 0.0 0.0 + x = 0.00 + 0.8 x = 0.00 + 0.8 Combine like terms: 0.00 + 0.8 = 0.8 x = 0.8 Simplifying x = 0.8

Subproblem 2

x + -0.8 = 0.00 Simplifying x + -0.8 = 0.00 Reorder the terms: -0.8 + x = 0.00 Solving -0.8 + x = 0.00 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.8' to each side of the equation. -0.8 + 0.8 + x = 0.00 + 0.8 Combine like terms: -0.8 + 0.8 = 0.0 0.0 + x = 0.00 + 0.8 x = 0.00 + 0.8 Combine like terms: 0.00 + 0.8 = 0.8 x = 0.8 Simplifying x = 0.8

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.8, 0.8}

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