43.96x+.785x^2=98

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Solution for 43.96x+.785x^2=98 equation:


Simplifying
43.96x + 0.785x2 = 98

Solving
43.96x + 0.785x2 = 98

Solving for variable 'x'.

Reorder the terms:
-98 + 43.96x + 0.785x2 = 98 + -98

Combine like terms: 98 + -98 = 0
-98 + 43.96x + 0.785x2 = 0

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

Divide each side by '0.785'.
-124.8407643 + 56x + x2 = 0

Move the constant term to the right:

Add '124.8407643' to each side of the equation.
-124.8407643 + 56x + 124.8407643 + x2 = 0 + 124.8407643

Reorder the terms:
-124.8407643 + 124.8407643 + 56x + x2 = 0 + 124.8407643

Combine like terms: -124.8407643 + 124.8407643 = 0.0000000
0.0000000 + 56x + x2 = 0 + 124.8407643
56x + x2 = 0 + 124.8407643

Combine like terms: 0 + 124.8407643 = 124.8407643
56x + x2 = 124.8407643

The x term is 56x.  Take half its coefficient (28).
Square it (784) and add it to both sides.

Add '784' to each side of the equation.
56x + 784 + x2 = 124.8407643 + 784

Reorder the terms:
784 + 56x + x2 = 124.8407643 + 784

Combine like terms: 124.8407643 + 784 = 908.8407643
784 + 56x + x2 = 908.8407643

Factor a perfect square on the left side:
(x + 28)(x + 28) = 908.8407643

Calculate the square root of the right side: 30.14698599

Break this problem into two subproblems by setting 
(x + 28) equal to 30.14698599 and -30.14698599.

Subproblem 1

x + 28 = 30.14698599 Simplifying x + 28 = 30.14698599 Reorder the terms: 28 + x = 30.14698599 Solving 28 + x = 30.14698599 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-28' to each side of the equation. 28 + -28 + x = 30.14698599 + -28 Combine like terms: 28 + -28 = 0 0 + x = 30.14698599 + -28 x = 30.14698599 + -28 Combine like terms: 30.14698599 + -28 = 2.14698599 x = 2.14698599 Simplifying x = 2.14698599

Subproblem 2

x + 28 = -30.14698599 Simplifying x + 28 = -30.14698599 Reorder the terms: 28 + x = -30.14698599 Solving 28 + x = -30.14698599 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-28' to each side of the equation. 28 + -28 + x = -30.14698599 + -28 Combine like terms: 28 + -28 = 0 0 + x = -30.14698599 + -28 x = -30.14698599 + -28 Combine like terms: -30.14698599 + -28 = -58.14698599 x = -58.14698599 Simplifying x = -58.14698599

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.14698599, -58.14698599}

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