n^2-160n+340=0

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Solution for n^2-160n+340=0 equation:


Simplifying
n2 + -160n + 340 = 0

Reorder the terms:
340 + -160n + n2 = 0

Solving
340 + -160n + n2 = 0

Solving for variable 'n'.

Begin completing the square.

Move the constant term to the right:

Add '-340' to each side of the equation.
340 + -160n + -340 + n2 = 0 + -340

Reorder the terms:
340 + -340 + -160n + n2 = 0 + -340

Combine like terms: 340 + -340 = 0
0 + -160n + n2 = 0 + -340
-160n + n2 = 0 + -340

Combine like terms: 0 + -340 = -340
-160n + n2 = -340

The n term is -160n.  Take half its coefficient (-80).
Square it (6400) and add it to both sides.

Add '6400' to each side of the equation.
-160n + 6400 + n2 = -340 + 6400

Reorder the terms:
6400 + -160n + n2 = -340 + 6400

Combine like terms: -340 + 6400 = 6060
6400 + -160n + n2 = 6060

Factor a perfect square on the left side:
(n + -80)(n + -80) = 6060

Calculate the square root of the right side: 77.846001824

Break this problem into two subproblems by setting 
(n + -80) equal to 77.846001824 and -77.846001824.

Subproblem 1

n + -80 = 77.846001824 Simplifying n + -80 = 77.846001824 Reorder the terms: -80 + n = 77.846001824 Solving -80 + n = 77.846001824 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '80' to each side of the equation. -80 + 80 + n = 77.846001824 + 80 Combine like terms: -80 + 80 = 0 0 + n = 77.846001824 + 80 n = 77.846001824 + 80 Combine like terms: 77.846001824 + 80 = 157.846001824 n = 157.846001824 Simplifying n = 157.846001824

Subproblem 2

n + -80 = -77.846001824 Simplifying n + -80 = -77.846001824 Reorder the terms: -80 + n = -77.846001824 Solving -80 + n = -77.846001824 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '80' to each side of the equation. -80 + 80 + n = -77.846001824 + 80 Combine like terms: -80 + 80 = 0 0 + n = -77.846001824 + 80 n = -77.846001824 + 80 Combine like terms: -77.846001824 + 80 = 2.153998176 n = 2.153998176 Simplifying n = 2.153998176

Solution

The solution to the problem is based on the solutions from the subproblems. n = {157.846001824, 2.153998176}

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