6x-0.75=x^2

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Solution for 6x-0.75=x^2 equation:


Simplifying
6x + -0.75 = x2

Reorder the terms:
-0.75 + 6x = x2

Solving
-0.75 + 6x = x2

Solving for variable 'x'.

Combine like terms: x2 + -1x2 = 0
-0.75 + 6x + -1x2 = 0

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
0.75 + -6x + x2 = 0

Move the constant term to the right:

Add '-0.75' to each side of the equation.
0.75 + -6x + -0.75 + x2 = 0 + -0.75

Reorder the terms:
0.75 + -0.75 + -6x + x2 = 0 + -0.75

Combine like terms: 0.75 + -0.75 = 0.00
0.00 + -6x + x2 = 0 + -0.75
-6x + x2 = 0 + -0.75

Combine like terms: 0 + -0.75 = -0.75
-6x + x2 = -0.75

The x term is -6x.  Take half its coefficient (-3).
Square it (9) and add it to both sides.

Add '9' to each side of the equation.
-6x + 9 + x2 = -0.75 + 9

Reorder the terms:
9 + -6x + x2 = -0.75 + 9

Combine like terms: -0.75 + 9 = 8.25
9 + -6x + x2 = 8.25

Factor a perfect square on the left side:
(x + -3)(x + -3) = 8.25

Calculate the square root of the right side: 2.872281323

Break this problem into two subproblems by setting 
(x + -3) equal to 2.872281323 and -2.872281323.

Subproblem 1

x + -3 = 2.872281323 Simplifying x + -3 = 2.872281323 Reorder the terms: -3 + x = 2.872281323 Solving -3 + x = 2.872281323 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + x = 2.872281323 + 3 Combine like terms: -3 + 3 = 0 0 + x = 2.872281323 + 3 x = 2.872281323 + 3 Combine like terms: 2.872281323 + 3 = 5.872281323 x = 5.872281323 Simplifying x = 5.872281323

Subproblem 2

x + -3 = -2.872281323 Simplifying x + -3 = -2.872281323 Reorder the terms: -3 + x = -2.872281323 Solving -3 + x = -2.872281323 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + x = -2.872281323 + 3 Combine like terms: -3 + 3 = 0 0 + x = -2.872281323 + 3 x = -2.872281323 + 3 Combine like terms: -2.872281323 + 3 = 0.127718677 x = 0.127718677 Simplifying x = 0.127718677

Solution

The solution to the problem is based on the solutions from the subproblems. x = {5.872281323, 0.127718677}

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