n^2+2n-3=299

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Solution for n^2+2n-3=299 equation:


Simplifying
n2 + 2n + -3 = 299

Reorder the terms:
-3 + 2n + n2 = 299

Solving
-3 + 2n + n2 = 299

Solving for variable 'n'.

Reorder the terms:
-3 + -299 + 2n + n2 = 299 + -299

Combine like terms: -3 + -299 = -302
-302 + 2n + n2 = 299 + -299

Combine like terms: 299 + -299 = 0
-302 + 2n + n2 = 0

Begin completing the square.

Move the constant term to the right:

Add '302' to each side of the equation.
-302 + 2n + 302 + n2 = 0 + 302

Reorder the terms:
-302 + 302 + 2n + n2 = 0 + 302

Combine like terms: -302 + 302 = 0
0 + 2n + n2 = 0 + 302
2n + n2 = 0 + 302

Combine like terms: 0 + 302 = 302
2n + n2 = 302

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 = 302 + 1

Reorder the terms:
1 + 2n + n2 = 302 + 1

Combine like terms: 302 + 1 = 303
1 + 2n + n2 = 303

Factor a perfect square on the left side:
(n + 1)(n + 1) = 303

Calculate the square root of the right side: 17.406895186

Break this problem into two subproblems by setting 
(n + 1) equal to 17.406895186 and -17.406895186.

Subproblem 1

n + 1 = 17.406895186 Simplifying n + 1 = 17.406895186 Reorder the terms: 1 + n = 17.406895186 Solving 1 + n = 17.406895186 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 = 17.406895186 + -1 Combine like terms: 1 + -1 = 0 0 + n = 17.406895186 + -1 n = 17.406895186 + -1 Combine like terms: 17.406895186 + -1 = 16.406895186 n = 16.406895186 Simplifying n = 16.406895186

Subproblem 2

n + 1 = -17.406895186 Simplifying n + 1 = -17.406895186 Reorder the terms: 1 + n = -17.406895186 Solving 1 + n = -17.406895186 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 = -17.406895186 + -1 Combine like terms: 1 + -1 = 0 0 + n = -17.406895186 + -1 n = -17.406895186 + -1 Combine like terms: -17.406895186 + -1 = -18.406895186 n = -18.406895186 Simplifying n = -18.406895186

Solution

The solution to the problem is based on the solutions from the subproblems. n = {16.406895186, -18.406895186}

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