n^2+2n-760=0

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Solution for n^2+2n-760=0 equation:


Simplifying
n2 + 2n + -760 = 0

Reorder the terms:
-760 + 2n + n2 = 0

Solving
-760 + 2n + n2 = 0

Solving for variable 'n'.

Begin completing the square.

Move the constant term to the right:

Add '760' to each side of the equation.
-760 + 2n + 760 + n2 = 0 + 760

Reorder the terms:
-760 + 760 + 2n + n2 = 0 + 760

Combine like terms: -760 + 760 = 0
0 + 2n + n2 = 0 + 760
2n + n2 = 0 + 760

Combine like terms: 0 + 760 = 760
2n + n2 = 760

The n term is 2n.  Take half its coefficient (1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
2n + 1 + n2 = 760 + 1

Reorder the terms:
1 + 2n + n2 = 760 + 1

Combine like terms: 760 + 1 = 761
1 + 2n + n2 = 761

Factor a perfect square on the left side:
(n + 1)(n + 1) = 761

Calculate the square root of the right side: 27.586228448

Break this problem into two subproblems by setting 
(n + 1) equal to 27.586228448 and -27.586228448.

Subproblem 1

n + 1 = 27.586228448 Simplifying n + 1 = 27.586228448 Reorder the terms: 1 + n = 27.586228448 Solving 1 + n = 27.586228448 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + n = 27.586228448 + -1 Combine like terms: 1 + -1 = 0 0 + n = 27.586228448 + -1 n = 27.586228448 + -1 Combine like terms: 27.586228448 + -1 = 26.586228448 n = 26.586228448 Simplifying n = 26.586228448

Subproblem 2

n + 1 = -27.586228448 Simplifying n + 1 = -27.586228448 Reorder the terms: 1 + n = -27.586228448 Solving 1 + n = -27.586228448 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + n = -27.586228448 + -1 Combine like terms: 1 + -1 = 0 0 + n = -27.586228448 + -1 n = -27.586228448 + -1 Combine like terms: -27.586228448 + -1 = -28.586228448 n = -28.586228448 Simplifying n = -28.586228448

Solution

The solution to the problem is based on the solutions from the subproblems. n = {26.586228448, -28.586228448}

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