5x^2+44x-4=0

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Solution for 5x^2+44x-4=0 equation:


Simplifying
5x2 + 44x + -4 = 0

Reorder the terms:
-4 + 44x + 5x2 = 0

Solving
-4 + 44x + 5x2 = 0

Solving for variable 'x'.

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

Divide each side by '5'.
-0.8 + 8.8x + x2 = 0

Move the constant term to the right:

Add '0.8' to each side of the equation.
-0.8 + 8.8x + 0.8 + x2 = 0 + 0.8

Reorder the terms:
-0.8 + 0.8 + 8.8x + x2 = 0 + 0.8

Combine like terms: -0.8 + 0.8 = 0.0
0.0 + 8.8x + x2 = 0 + 0.8
8.8x + x2 = 0 + 0.8

Combine like terms: 0 + 0.8 = 0.8
8.8x + x2 = 0.8

The x term is 8.8x.  Take half its coefficient (4.4).
Square it (19.36) and add it to both sides.

Add '19.36' to each side of the equation.
8.8x + 19.36 + x2 = 0.8 + 19.36

Reorder the terms:
19.36 + 8.8x + x2 = 0.8 + 19.36

Combine like terms: 0.8 + 19.36 = 20.16
19.36 + 8.8x + x2 = 20.16

Factor a perfect square on the left side:
(x + 4.4)(x + 4.4) = 20.16

Calculate the square root of the right side: 4.489988864

Break this problem into two subproblems by setting 
(x + 4.4) equal to 4.489988864 and -4.489988864.

Subproblem 1

x + 4.4 = 4.489988864 Simplifying x + 4.4 = 4.489988864 Reorder the terms: 4.4 + x = 4.489988864 Solving 4.4 + x = 4.489988864 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4.4' to each side of the equation. 4.4 + -4.4 + x = 4.489988864 + -4.4 Combine like terms: 4.4 + -4.4 = 0.0 0.0 + x = 4.489988864 + -4.4 x = 4.489988864 + -4.4 Combine like terms: 4.489988864 + -4.4 = 0.089988864 x = 0.089988864 Simplifying x = 0.089988864

Subproblem 2

x + 4.4 = -4.489988864 Simplifying x + 4.4 = -4.489988864 Reorder the terms: 4.4 + x = -4.489988864 Solving 4.4 + x = -4.489988864 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4.4' to each side of the equation. 4.4 + -4.4 + x = -4.489988864 + -4.4 Combine like terms: 4.4 + -4.4 = 0.0 0.0 + x = -4.489988864 + -4.4 x = -4.489988864 + -4.4 Combine like terms: -4.489988864 + -4.4 = -8.889988864 x = -8.889988864 Simplifying x = -8.889988864

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.089988864, -8.889988864}

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