-4.905x^2+22x-6=0

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Solution for -4.905x^2+22x-6=0 equation:


Simplifying
-4.905x2 + 22x + -6 = 0

Reorder the terms:
-6 + 22x + -4.905x2 = 0

Solving
-6 + 22x + -4.905x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-4.905 the coefficient of the squared term: 

Divide each side by '-4.905'.
1.22324159 + -4.485219164x + x2 = 0

Move the constant term to the right:

Add '-1.22324159' to each side of the equation.
1.22324159 + -4.485219164x + -1.22324159 + x2 = 0 + -1.22324159

Reorder the terms:
1.22324159 + -1.22324159 + -4.485219164x + x2 = 0 + -1.22324159

Combine like terms: 1.22324159 + -1.22324159 = 0.00000000
0.00000000 + -4.485219164x + x2 = 0 + -1.22324159
-4.485219164x + x2 = 0 + -1.22324159

Combine like terms: 0 + -1.22324159 = -1.22324159
-4.485219164x + x2 = -1.22324159

The x term is -4.485219164x.  Take half its coefficient (-2.242609582).
Square it (5.029297737) and add it to both sides.

Add '5.029297737' to each side of the equation.
-4.485219164x + 5.029297737 + x2 = -1.22324159 + 5.029297737

Reorder the terms:
5.029297737 + -4.485219164x + x2 = -1.22324159 + 5.029297737

Combine like terms: -1.22324159 + 5.029297737 = 3.806056147
5.029297737 + -4.485219164x + x2 = 3.806056147

Factor a perfect square on the left side:
(x + -2.242609582)(x + -2.242609582) = 3.806056147

Calculate the square root of the right side: 1.950911619

Break this problem into two subproblems by setting 
(x + -2.242609582) equal to 1.950911619 and -1.950911619.

Subproblem 1

x + -2.242609582 = 1.950911619 Simplifying x + -2.242609582 = 1.950911619 Reorder the terms: -2.242609582 + x = 1.950911619 Solving -2.242609582 + x = 1.950911619 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.242609582' to each side of the equation. -2.242609582 + 2.242609582 + x = 1.950911619 + 2.242609582 Combine like terms: -2.242609582 + 2.242609582 = 0.000000000 0.000000000 + x = 1.950911619 + 2.242609582 x = 1.950911619 + 2.242609582 Combine like terms: 1.950911619 + 2.242609582 = 4.193521201 x = 4.193521201 Simplifying x = 4.193521201

Subproblem 2

x + -2.242609582 = -1.950911619 Simplifying x + -2.242609582 = -1.950911619 Reorder the terms: -2.242609582 + x = -1.950911619 Solving -2.242609582 + x = -1.950911619 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.242609582' to each side of the equation. -2.242609582 + 2.242609582 + x = -1.950911619 + 2.242609582 Combine like terms: -2.242609582 + 2.242609582 = 0.000000000 0.000000000 + x = -1.950911619 + 2.242609582 x = -1.950911619 + 2.242609582 Combine like terms: -1.950911619 + 2.242609582 = 0.291697963 x = 0.291697963 Simplifying x = 0.291697963

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.193521201, 0.291697963}

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