33600-140x-x^2=0

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Solution for 33600-140x-x^2=0 equation:


Simplifying
33600 + -140x + -1x2 = 0

Solving
33600 + -140x + -1x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
-33600 + 140x + x2 = 0

Move the constant term to the right:

Add '33600' to each side of the equation.
-33600 + 140x + 33600 + x2 = 0 + 33600

Reorder the terms:
-33600 + 33600 + 140x + x2 = 0 + 33600

Combine like terms: -33600 + 33600 = 0
0 + 140x + x2 = 0 + 33600
140x + x2 = 0 + 33600

Combine like terms: 0 + 33600 = 33600
140x + x2 = 33600

The x term is 140x.  Take half its coefficient (70).
Square it (4900) and add it to both sides.

Add '4900' to each side of the equation.
140x + 4900 + x2 = 33600 + 4900

Reorder the terms:
4900 + 140x + x2 = 33600 + 4900

Combine like terms: 33600 + 4900 = 38500
4900 + 140x + x2 = 38500

Factor a perfect square on the left side:
(x + 70)(x + 70) = 38500

Calculate the square root of the right side: 196.214168703

Break this problem into two subproblems by setting 
(x + 70) equal to 196.214168703 and -196.214168703.

Subproblem 1

x + 70 = 196.214168703 Simplifying x + 70 = 196.214168703 Reorder the terms: 70 + x = 196.214168703 Solving 70 + x = 196.214168703 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-70' to each side of the equation. 70 + -70 + x = 196.214168703 + -70 Combine like terms: 70 + -70 = 0 0 + x = 196.214168703 + -70 x = 196.214168703 + -70 Combine like terms: 196.214168703 + -70 = 126.214168703 x = 126.214168703 Simplifying x = 126.214168703

Subproblem 2

x + 70 = -196.214168703 Simplifying x + 70 = -196.214168703 Reorder the terms: 70 + x = -196.214168703 Solving 70 + x = -196.214168703 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-70' to each side of the equation. 70 + -70 + x = -196.214168703 + -70 Combine like terms: 70 + -70 = 0 0 + x = -196.214168703 + -70 x = -196.214168703 + -70 Combine like terms: -196.214168703 + -70 = -266.214168703 x = -266.214168703 Simplifying x = -266.214168703

Solution

The solution to the problem is based on the solutions from the subproblems. x = {126.214168703, -266.214168703}

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