n*n+n=30

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Solution for n*n+n=30 equation:


Simplifying
n * n + n = 30

Multiply n * n
n2 + n = 30

Reorder the terms:
n + n2 = 30

Solving
n + n2 = 30

Solving for variable 'n'.

Reorder the terms:
-30 + n + n2 = 30 + -30

Combine like terms: 30 + -30 = 0
-30 + n + n2 = 0

Factor a trinomial.
(-6 + -1n)(5 + -1n) = 0

Subproblem 1

Set the factor '(-6 + -1n)' equal to zero and attempt to solve: Simplifying -6 + -1n = 0 Solving -6 + -1n = 0 Move all terms containing n to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + -1n = 0 + 6 Combine like terms: -6 + 6 = 0 0 + -1n = 0 + 6 -1n = 0 + 6 Combine like terms: 0 + 6 = 6 -1n = 6 Divide each side by '-1'. n = -6 Simplifying n = -6

Subproblem 2

Set the factor '(5 + -1n)' equal to zero and attempt to solve: Simplifying 5 + -1n = 0 Solving 5 + -1n = 0 Move all terms containing n to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -1n = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1n = 0 + -5 -1n = 0 + -5 Combine like terms: 0 + -5 = -5 -1n = -5 Divide each side by '-1'. n = 5 Simplifying n = 5

Solution

n = {-6, 5}

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