(n-3)(n-3)=250

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Solution for (n-3)(n-3)=250 equation:


Simplifying
(n + -3)(n + -3) = 250

Reorder the terms:
(-3 + n)(n + -3) = 250

Reorder the terms:
(-3 + n)(-3 + n) = 250

Multiply (-3 + n) * (-3 + n)
(-3(-3 + n) + n(-3 + n)) = 250
((-3 * -3 + n * -3) + n(-3 + n)) = 250
((9 + -3n) + n(-3 + n)) = 250
(9 + -3n + (-3 * n + n * n)) = 250
(9 + -3n + (-3n + n2)) = 250

Combine like terms: -3n + -3n = -6n
(9 + -6n + n2) = 250

Solving
9 + -6n + n2 = 250

Solving for variable 'n'.

Reorder the terms:
9 + -250 + -6n + n2 = 250 + -250

Combine like terms: 9 + -250 = -241
-241 + -6n + n2 = 250 + -250

Combine like terms: 250 + -250 = 0
-241 + -6n + n2 = 0

Begin completing the square.

Move the constant term to the right:

Add '241' to each side of the equation.
-241 + -6n + 241 + n2 = 0 + 241

Reorder the terms:
-241 + 241 + -6n + n2 = 0 + 241

Combine like terms: -241 + 241 = 0
0 + -6n + n2 = 0 + 241
-6n + n2 = 0 + 241

Combine like terms: 0 + 241 = 241
-6n + n2 = 241

The n term is -6n.  Take half its coefficient (-3).
Square it (9) and add it to both sides.

Add '9' to each side of the equation.
-6n + 9 + n2 = 241 + 9

Reorder the terms:
9 + -6n + n2 = 241 + 9

Combine like terms: 241 + 9 = 250
9 + -6n + n2 = 250

Factor a perfect square on the left side:
(n + -3)(n + -3) = 250

Calculate the square root of the right side: 15.811388301

Break this problem into two subproblems by setting 
(n + -3) equal to 15.811388301 and -15.811388301.

Subproblem 1

n + -3 = 15.811388301 Simplifying n + -3 = 15.811388301 Reorder the terms: -3 + n = 15.811388301 Solving -3 + n = 15.811388301 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + n = 15.811388301 + 3 Combine like terms: -3 + 3 = 0 0 + n = 15.811388301 + 3 n = 15.811388301 + 3 Combine like terms: 15.811388301 + 3 = 18.811388301 n = 18.811388301 Simplifying n = 18.811388301

Subproblem 2

n + -3 = -15.811388301 Simplifying n + -3 = -15.811388301 Reorder the terms: -3 + n = -15.811388301 Solving -3 + n = -15.811388301 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + n = -15.811388301 + 3 Combine like terms: -3 + 3 = 0 0 + n = -15.811388301 + 3 n = -15.811388301 + 3 Combine like terms: -15.811388301 + 3 = -12.811388301 n = -12.811388301 Simplifying n = -12.811388301

Solution

The solution to the problem is based on the solutions from the subproblems. n = {18.811388301, -12.811388301}

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