x(x)-1.33x-6.67=0

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Solution for x(x)-1.33x-6.67=0 equation:


Simplifying
x(x) + -1.33x + -6.67 = 0

Multiply x * x
x2 + -1.33x + -6.67 = 0

Reorder the terms:
-6.67 + -1.33x + x2 = 0

Solving
-6.67 + -1.33x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '6.67' to each side of the equation.
-6.67 + -1.33x + 6.67 + x2 = 0 + 6.67

Reorder the terms:
-6.67 + 6.67 + -1.33x + x2 = 0 + 6.67

Combine like terms: -6.67 + 6.67 = 0.00
0.00 + -1.33x + x2 = 0 + 6.67
-1.33x + x2 = 0 + 6.67

Combine like terms: 0 + 6.67 = 6.67
-1.33x + x2 = 6.67

The x term is -1.33x.  Take half its coefficient (-0.665).
Square it (0.442225) and add it to both sides.

Add '0.442225' to each side of the equation.
-1.33x + 0.442225 + x2 = 6.67 + 0.442225

Reorder the terms:
0.442225 + -1.33x + x2 = 6.67 + 0.442225

Combine like terms: 6.67 + 0.442225 = 7.112225
0.442225 + -1.33x + x2 = 7.112225

Factor a perfect square on the left side:
(x + -0.665)(x + -0.665) = 7.112225

Calculate the square root of the right side: 2.666875513

Break this problem into two subproblems by setting 
(x + -0.665) equal to 2.666875513 and -2.666875513.

Subproblem 1

x + -0.665 = 2.666875513 Simplifying x + -0.665 = 2.666875513 Reorder the terms: -0.665 + x = 2.666875513 Solving -0.665 + x = 2.666875513 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.665' to each side of the equation. -0.665 + 0.665 + x = 2.666875513 + 0.665 Combine like terms: -0.665 + 0.665 = 0.000 0.000 + x = 2.666875513 + 0.665 x = 2.666875513 + 0.665 Combine like terms: 2.666875513 + 0.665 = 3.331875513 x = 3.331875513 Simplifying x = 3.331875513

Subproblem 2

x + -0.665 = -2.666875513 Simplifying x + -0.665 = -2.666875513 Reorder the terms: -0.665 + x = -2.666875513 Solving -0.665 + x = -2.666875513 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.665' to each side of the equation. -0.665 + 0.665 + x = -2.666875513 + 0.665 Combine like terms: -0.665 + 0.665 = 0.000 0.000 + x = -2.666875513 + 0.665 x = -2.666875513 + 0.665 Combine like terms: -2.666875513 + 0.665 = -2.001875513 x = -2.001875513 Simplifying x = -2.001875513

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.331875513, -2.001875513}

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