x=-4.9x^2+33.6x+4.9

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Solution for x=-4.9x^2+33.6x+4.9 equation:


Simplifying
x = -4.9x2 + 33.6x + 4.9

Reorder the terms:
x = 4.9 + 33.6x + -4.9x2

Solving
x = 4.9 + 33.6x + -4.9x2

Solving for variable 'x'.

Reorder the terms:
-4.9 + x + -33.6x + 4.9x2 = 4.9 + 33.6x + -4.9x2 + -4.9 + -33.6x + 4.9x2

Combine like terms: x + -33.6x = -32.6x
-4.9 + -32.6x + 4.9x2 = 4.9 + 33.6x + -4.9x2 + -4.9 + -33.6x + 4.9x2

Reorder the terms:
-4.9 + -32.6x + 4.9x2 = 4.9 + -4.9 + 33.6x + -33.6x + -4.9x2 + 4.9x2

Combine like terms: 4.9 + -4.9 = 0.0
-4.9 + -32.6x + 4.9x2 = 0.0 + 33.6x + -33.6x + -4.9x2 + 4.9x2
-4.9 + -32.6x + 4.9x2 = 33.6x + -33.6x + -4.9x2 + 4.9x2

Combine like terms: 33.6x + -33.6x = 0.0
-4.9 + -32.6x + 4.9x2 = 0.0 + -4.9x2 + 4.9x2
-4.9 + -32.6x + 4.9x2 = -4.9x2 + 4.9x2

Combine like terms: -4.9x2 + 4.9x2 = 0.0
-4.9 + -32.6x + 4.9x2 = 0.0

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

Divide each side by '4.9'.
-1 + -6.653061224x + x2 = 0

Move the constant term to the right:

Add '1' to each side of the equation.
-1 + -6.653061224x + 1 + x2 = 0 + 1

Reorder the terms:
-1 + 1 + -6.653061224x + x2 = 0 + 1

Combine like terms: -1 + 1 = 0
0 + -6.653061224x + x2 = 0 + 1
-6.653061224x + x2 = 0 + 1

Combine like terms: 0 + 1 = 1
-6.653061224x + x2 = 1

The x term is -6.653061224x.  Take half its coefficient (-3.326530612).
Square it (11.06580591) and add it to both sides.

Add '11.06580591' to each side of the equation.
-6.653061224x + 11.06580591 + x2 = 1 + 11.06580591

Reorder the terms:
11.06580591 + -6.653061224x + x2 = 1 + 11.06580591

Combine like terms: 1 + 11.06580591 = 12.06580591
11.06580591 + -6.653061224x + x2 = 12.06580591

Factor a perfect square on the left side:
(x + -3.326530612)(x + -3.326530612) = 12.06580591

Calculate the square root of the right side: 3.473586894

Break this problem into two subproblems by setting 
(x + -3.326530612) equal to 3.473586894 and -3.473586894.

Subproblem 1

x + -3.326530612 = 3.473586894 Simplifying x + -3.326530612 = 3.473586894 Reorder the terms: -3.326530612 + x = 3.473586894 Solving -3.326530612 + x = 3.473586894 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.326530612' to each side of the equation. -3.326530612 + 3.326530612 + x = 3.473586894 + 3.326530612 Combine like terms: -3.326530612 + 3.326530612 = 0.000000000 0.000000000 + x = 3.473586894 + 3.326530612 x = 3.473586894 + 3.326530612 Combine like terms: 3.473586894 + 3.326530612 = 6.800117506 x = 6.800117506 Simplifying x = 6.800117506

Subproblem 2

x + -3.326530612 = -3.473586894 Simplifying x + -3.326530612 = -3.473586894 Reorder the terms: -3.326530612 + x = -3.473586894 Solving -3.326530612 + x = -3.473586894 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.326530612' to each side of the equation. -3.326530612 + 3.326530612 + x = -3.473586894 + 3.326530612 Combine like terms: -3.326530612 + 3.326530612 = 0.000000000 0.000000000 + x = -3.473586894 + 3.326530612 x = -3.473586894 + 3.326530612 Combine like terms: -3.473586894 + 3.326530612 = -0.147056282 x = -0.147056282 Simplifying x = -0.147056282

Solution

The solution to the problem is based on the solutions from the subproblems. x = {6.800117506, -0.147056282}

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