-0.08x^2+2.88x=6

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Solution for -0.08x^2+2.88x=6 equation:


Simplifying
-0.08x2 + 2.88x = 6

Reorder the terms:
2.88x + -0.08x2 = 6

Solving
2.88x + -0.08x2 = 6

Solving for variable 'x'.

Reorder the terms:
-6 + 2.88x + -0.08x2 = 6 + -6

Combine like terms: 6 + -6 = 0
-6 + 2.88x + -0.08x2 = 0

Begin completing the square.  Divide all terms by
-0.08 the coefficient of the squared term: 

Divide each side by '-0.08'.
75 + -36x + x2 = 0

Move the constant term to the right:

Add '-75' to each side of the equation.
75 + -36x + -75 + x2 = 0 + -75

Reorder the terms:
75 + -75 + -36x + x2 = 0 + -75

Combine like terms: 75 + -75 = 0
0 + -36x + x2 = 0 + -75
-36x + x2 = 0 + -75

Combine like terms: 0 + -75 = -75
-36x + x2 = -75

The x term is -36x.  Take half its coefficient (-18).
Square it (324) and add it to both sides.

Add '324' to each side of the equation.
-36x + 324 + x2 = -75 + 324

Reorder the terms:
324 + -36x + x2 = -75 + 324

Combine like terms: -75 + 324 = 249
324 + -36x + x2 = 249

Factor a perfect square on the left side:
(x + -18)(x + -18) = 249

Calculate the square root of the right side: 15.779733838

Break this problem into two subproblems by setting 
(x + -18) equal to 15.779733838 and -15.779733838.

Subproblem 1

x + -18 = 15.779733838 Simplifying x + -18 = 15.779733838 Reorder the terms: -18 + x = 15.779733838 Solving -18 + x = 15.779733838 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '18' to each side of the equation. -18 + 18 + x = 15.779733838 + 18 Combine like terms: -18 + 18 = 0 0 + x = 15.779733838 + 18 x = 15.779733838 + 18 Combine like terms: 15.779733838 + 18 = 33.779733838 x = 33.779733838 Simplifying x = 33.779733838

Subproblem 2

x + -18 = -15.779733838 Simplifying x + -18 = -15.779733838 Reorder the terms: -18 + x = -15.779733838 Solving -18 + x = -15.779733838 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '18' to each side of the equation. -18 + 18 + x = -15.779733838 + 18 Combine like terms: -18 + 18 = 0 0 + x = -15.779733838 + 18 x = -15.779733838 + 18 Combine like terms: -15.779733838 + 18 = 2.220266162 x = 2.220266162 Simplifying x = 2.220266162

Solution

The solution to the problem is based on the solutions from the subproblems. x = {33.779733838, 2.220266162}

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