(n*n)+-n=904

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Solution for (n*n)+-n=904 equation:


Simplifying
(n * n) + -1n = 904

Multiply n * n
(n2) + -1n = 904
n2 + -1n = 904

Reorder the terms:
-1n + n2 = 904

Solving
-1n + n2 = 904

Solving for variable 'n'.

Reorder the terms:
-904 + -1n + n2 = 904 + -904

Combine like terms: 904 + -904 = 0
-904 + -1n + n2 = 0

Begin completing the square.

Move the constant term to the right:

Add '904' to each side of the equation.
-904 + -1n + 904 + n2 = 0 + 904

Reorder the terms:
-904 + 904 + -1n + n2 = 0 + 904

Combine like terms: -904 + 904 = 0
0 + -1n + n2 = 0 + 904
-1n + n2 = 0 + 904

Combine like terms: 0 + 904 = 904
-1n + n2 = 904

The n term is -1n.  Take half its coefficient (-0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
-1n + 0.25 + n2 = 904 + 0.25

Reorder the terms:
0.25 + -1n + n2 = 904 + 0.25

Combine like terms: 904 + 0.25 = 904.25
0.25 + -1n + n2 = 904.25

Factor a perfect square on the left side:
(n + -0.5)(n + -0.5) = 904.25

Calculate the square root of the right side: 30.070749908

Break this problem into two subproblems by setting 
(n + -0.5) equal to 30.070749908 and -30.070749908.

Subproblem 1

n + -0.5 = 30.070749908 Simplifying n + -0.5 = 30.070749908 Reorder the terms: -0.5 + n = 30.070749908 Solving -0.5 + n = 30.070749908 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + n = 30.070749908 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + n = 30.070749908 + 0.5 n = 30.070749908 + 0.5 Combine like terms: 30.070749908 + 0.5 = 30.570749908 n = 30.570749908 Simplifying n = 30.570749908

Subproblem 2

n + -0.5 = -30.070749908 Simplifying n + -0.5 = -30.070749908 Reorder the terms: -0.5 + n = -30.070749908 Solving -0.5 + n = -30.070749908 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + n = -30.070749908 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + n = -30.070749908 + 0.5 n = -30.070749908 + 0.5 Combine like terms: -30.070749908 + 0.5 = -29.570749908 n = -29.570749908 Simplifying n = -29.570749908

Solution

The solution to the problem is based on the solutions from the subproblems. n = {30.570749908, -29.570749908}

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