-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 = 6.252539327
5.029297737 + 4.485219164x + x2 = 6.252539327

Factor a perfect square on the left side:
(x + 2.242609582)(x + 2.242609582) = 6.252539327

Calculate the square root of the right side: 2.500507814

Break this problem into two subproblems by setting 
(x + 2.242609582) equal to 2.500507814 and -2.500507814.

Subproblem 1

x + 2.242609582 = 2.500507814 Simplifying x + 2.242609582 = 2.500507814 Reorder the terms: 2.242609582 + x = 2.500507814 Solving 2.242609582 + x = 2.500507814 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 = 2.500507814 + -2.242609582 Combine like terms: 2.242609582 + -2.242609582 = 0.000000000 0.000000000 + x = 2.500507814 + -2.242609582 x = 2.500507814 + -2.242609582 Combine like terms: 2.500507814 + -2.242609582 = 0.257898232 x = 0.257898232 Simplifying x = 0.257898232

Subproblem 2

x + 2.242609582 = -2.500507814 Simplifying x + 2.242609582 = -2.500507814 Reorder the terms: 2.242609582 + x = -2.500507814 Solving 2.242609582 + x = -2.500507814 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 = -2.500507814 + -2.242609582 Combine like terms: 2.242609582 + -2.242609582 = 0.000000000 0.000000000 + x = -2.500507814 + -2.242609582 x = -2.500507814 + -2.242609582 Combine like terms: -2.500507814 + -2.242609582 = -4.743117396 x = -4.743117396 Simplifying x = -4.743117396

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.257898232, -4.743117396}

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