-0.096x^2+4.8x+20=0

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Solution for -0.096x^2+4.8x+20=0 equation:


Simplifying
-0.096x2 + 4.8x + 20 = 0

Reorder the terms:
20 + 4.8x + -0.096x2 = 0

Solving
20 + 4.8x + -0.096x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-0.096 the coefficient of the squared term: 

Divide each side by '-0.096'.
-208.3333333 + -50x + x2 = 0

Move the constant term to the right:

Add '208.3333333' to each side of the equation.
-208.3333333 + -50x + 208.3333333 + x2 = 0 + 208.3333333

Reorder the terms:
-208.3333333 + 208.3333333 + -50x + x2 = 0 + 208.3333333

Combine like terms: -208.3333333 + 208.3333333 = 0.0000000
0.0000000 + -50x + x2 = 0 + 208.3333333
-50x + x2 = 0 + 208.3333333

Combine like terms: 0 + 208.3333333 = 208.3333333
-50x + x2 = 208.3333333

The x term is -50x.  Take half its coefficient (-25).
Square it (625) and add it to both sides.

Add '625' to each side of the equation.
-50x + 625 + x2 = 208.3333333 + 625

Reorder the terms:
625 + -50x + x2 = 208.3333333 + 625

Combine like terms: 208.3333333 + 625 = 833.3333333
625 + -50x + x2 = 833.3333333

Factor a perfect square on the left side:
(x + -25)(x + -25) = 833.3333333

Calculate the square root of the right side: 28.867513459

Break this problem into two subproblems by setting 
(x + -25) equal to 28.867513459 and -28.867513459.

Subproblem 1

x + -25 = 28.867513459 Simplifying x + -25 = 28.867513459 Reorder the terms: -25 + x = 28.867513459 Solving -25 + x = 28.867513459 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '25' to each side of the equation. -25 + 25 + x = 28.867513459 + 25 Combine like terms: -25 + 25 = 0 0 + x = 28.867513459 + 25 x = 28.867513459 + 25 Combine like terms: 28.867513459 + 25 = 53.867513459 x = 53.867513459 Simplifying x = 53.867513459

Subproblem 2

x + -25 = -28.867513459 Simplifying x + -25 = -28.867513459 Reorder the terms: -25 + x = -28.867513459 Solving -25 + x = -28.867513459 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '25' to each side of the equation. -25 + 25 + x = -28.867513459 + 25 Combine like terms: -25 + 25 = 0 0 + x = -28.867513459 + 25 x = -28.867513459 + 25 Combine like terms: -28.867513459 + 25 = -3.867513459 x = -3.867513459 Simplifying x = -3.867513459

Solution

The solution to the problem is based on the solutions from the subproblems. x = {53.867513459, -3.867513459}

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