-.1666666667x^2+1.5x-3=0

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Solution for -.1666666667x^2+1.5x-3=0 equation:


Simplifying
-0.1666666667x2 + 1.5x + -3 = 0

Reorder the terms:
-3 + 1.5x + -0.1666666667x2 = 0

Solving
-3 + 1.5x + -0.1666666667x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-0.1666666667 the coefficient of the squared term: 

Divide each side by '-0.1666666667'.
18 + -8.999999998x + x2 = 0

Move the constant term to the right:

Add '-18' to each side of the equation.
18 + -8.999999998x + -18 + x2 = 0 + -18

Reorder the terms:
18 + -18 + -8.999999998x + x2 = 0 + -18

Combine like terms: 18 + -18 = 0
0 + -8.999999998x + x2 = 0 + -18
-8.999999998x + x2 = 0 + -18

Combine like terms: 0 + -18 = -18
-8.999999998x + x2 = -18

The x term is -8.999999998x.  Take half its coefficient (-4.499999999).
Square it (20.24999999) and add it to both sides.

Add '20.24999999' to each side of the equation.
-8.999999998x + 20.24999999 + x2 = -18 + 20.24999999

Reorder the terms:
20.24999999 + -8.999999998x + x2 = -18 + 20.24999999

Combine like terms: -18 + 20.24999999 = 2.24999999
20.24999999 + -8.999999998x + x2 = 2.24999999

Factor a perfect square on the left side:
(x + -4.499999999)(x + -4.499999999) = 2.24999999

Calculate the square root of the right side: 1.499999997

Break this problem into two subproblems by setting 
(x + -4.499999999) equal to 1.499999997 and -1.499999997.

Subproblem 1

x + -4.499999999 = 1.499999997 Simplifying x + -4.499999999 = 1.499999997 Reorder the terms: -4.499999999 + x = 1.499999997 Solving -4.499999999 + x = 1.499999997 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4.499999999' to each side of the equation. -4.499999999 + 4.499999999 + x = 1.499999997 + 4.499999999 Combine like terms: -4.499999999 + 4.499999999 = 0.000000000 0.000000000 + x = 1.499999997 + 4.499999999 x = 1.499999997 + 4.499999999 Combine like terms: 1.499999997 + 4.499999999 = 5.999999996 x = 5.999999996 Simplifying x = 5.999999996

Subproblem 2

x + -4.499999999 = -1.499999997 Simplifying x + -4.499999999 = -1.499999997 Reorder the terms: -4.499999999 + x = -1.499999997 Solving -4.499999999 + x = -1.499999997 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4.499999999' to each side of the equation. -4.499999999 + 4.499999999 + x = -1.499999997 + 4.499999999 Combine like terms: -4.499999999 + 4.499999999 = 0.000000000 0.000000000 + x = -1.499999997 + 4.499999999 x = -1.499999997 + 4.499999999 Combine like terms: -1.499999997 + 4.499999999 = 3.000000002 x = 3.000000002 Simplifying x = 3.000000002

Solution

The solution to the problem is based on the solutions from the subproblems. x = {5.999999996, 3.000000002}

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