0.5x^2+140x-9600=0

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Solution for 0.5x^2+140x-9600=0 equation:


Simplifying
0.5x2 + 140x + -9600 = 0

Reorder the terms:
-9600 + 140x + 0.5x2 = 0

Solving
-9600 + 140x + 0.5x2 = 0

Solving for variable 'x'.

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

Divide each side by '0.5'.
-19200 + 280x + x2 = 0

Move the constant term to the right:

Add '19200' to each side of the equation.
-19200 + 280x + 19200 + x2 = 0 + 19200

Reorder the terms:
-19200 + 19200 + 280x + x2 = 0 + 19200

Combine like terms: -19200 + 19200 = 0
0 + 280x + x2 = 0 + 19200
280x + x2 = 0 + 19200

Combine like terms: 0 + 19200 = 19200
280x + x2 = 19200

The x term is 280x.  Take half its coefficient (140).
Square it (19600) and add it to both sides.

Add '19600' to each side of the equation.
280x + 19600 + x2 = 19200 + 19600

Reorder the terms:
19600 + 280x + x2 = 19200 + 19600

Combine like terms: 19200 + 19600 = 38800
19600 + 280x + x2 = 38800

Factor a perfect square on the left side:
(x + 140)(x + 140) = 38800

Calculate the square root of the right side: 196.977156036

Break this problem into two subproblems by setting 
(x + 140) equal to 196.977156036 and -196.977156036.

Subproblem 1

x + 140 = 196.977156036 Simplifying x + 140 = 196.977156036 Reorder the terms: 140 + x = 196.977156036 Solving 140 + x = 196.977156036 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-140' to each side of the equation. 140 + -140 + x = 196.977156036 + -140 Combine like terms: 140 + -140 = 0 0 + x = 196.977156036 + -140 x = 196.977156036 + -140 Combine like terms: 196.977156036 + -140 = 56.977156036 x = 56.977156036 Simplifying x = 56.977156036

Subproblem 2

x + 140 = -196.977156036 Simplifying x + 140 = -196.977156036 Reorder the terms: 140 + x = -196.977156036 Solving 140 + x = -196.977156036 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-140' to each side of the equation. 140 + -140 + x = -196.977156036 + -140 Combine like terms: 140 + -140 = 0 0 + x = -196.977156036 + -140 x = -196.977156036 + -140 Combine like terms: -196.977156036 + -140 = -336.977156036 x = -336.977156036 Simplifying x = -336.977156036

Solution

The solution to the problem is based on the solutions from the subproblems. x = {56.977156036, -336.977156036}

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