n^2+n-888=0

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Solution for n^2+n-888=0 equation:


Simplifying
n2 + n + -888 = 0

Reorder the terms:
-888 + n + n2 = 0

Solving
-888 + n + n2 = 0

Solving for variable 'n'.

Begin completing the square.

Move the constant term to the right:

Add '888' to each side of the equation.
-888 + n + 888 + n2 = 0 + 888

Reorder the terms:
-888 + 888 + n + n2 = 0 + 888

Combine like terms: -888 + 888 = 0
0 + n + n2 = 0 + 888
n + n2 = 0 + 888

Combine like terms: 0 + 888 = 888
n + n2 = 888

The n term is n.  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.
n + 0.25 + n2 = 888 + 0.25

Reorder the terms:
0.25 + n + n2 = 888 + 0.25

Combine like terms: 888 + 0.25 = 888.25
0.25 + n + n2 = 888.25

Factor a perfect square on the left side:
(n + 0.5)(n + 0.5) = 888.25

Calculate the square root of the right side: 29.803523282

Break this problem into two subproblems by setting 
(n + 0.5) equal to 29.803523282 and -29.803523282.

Subproblem 1

n + 0.5 = 29.803523282 Simplifying n + 0.5 = 29.803523282 Reorder the terms: 0.5 + n = 29.803523282 Solving 0.5 + n = 29.803523282 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 = 29.803523282 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + n = 29.803523282 + -0.5 n = 29.803523282 + -0.5 Combine like terms: 29.803523282 + -0.5 = 29.303523282 n = 29.303523282 Simplifying n = 29.303523282

Subproblem 2

n + 0.5 = -29.803523282 Simplifying n + 0.5 = -29.803523282 Reorder the terms: 0.5 + n = -29.803523282 Solving 0.5 + n = -29.803523282 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 = -29.803523282 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + n = -29.803523282 + -0.5 n = -29.803523282 + -0.5 Combine like terms: -29.803523282 + -0.5 = -30.303523282 n = -30.303523282 Simplifying n = -30.303523282

Solution

The solution to the problem is based on the solutions from the subproblems. n = {29.303523282, -30.303523282}

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