342=n^2+n

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Solution for 342=n^2+n equation:


Simplifying
342 = n2 + n

Reorder the terms:
342 = n + n2

Solving
342 = n + n2

Solving for variable 'n'.

Reorder the terms:
342 + -1n + -1n2 = n + -1n + n2 + -1n2

Combine like terms: n + -1n = 0
342 + -1n + -1n2 = 0 + n2 + -1n2
342 + -1n + -1n2 = n2 + -1n2

Combine like terms: n2 + -1n2 = 0
342 + -1n + -1n2 = 0

Factor a trinomial.
(18 + -1n)(19 + n) = 0

Subproblem 1

Set the factor '(18 + -1n)' equal to zero and attempt to solve: Simplifying 18 + -1n = 0 Solving 18 + -1n = 0 Move all terms containing n to the left, all other terms to the right. Add '-18' to each side of the equation. 18 + -18 + -1n = 0 + -18 Combine like terms: 18 + -18 = 0 0 + -1n = 0 + -18 -1n = 0 + -18 Combine like terms: 0 + -18 = -18 -1n = -18 Divide each side by '-1'. n = 18 Simplifying n = 18

Subproblem 2

Set the factor '(19 + n)' equal to zero and attempt to solve: Simplifying 19 + n = 0 Solving 19 + n = 0 Move all terms containing n to the left, all other terms to the right. Add '-19' to each side of the equation. 19 + -19 + n = 0 + -19 Combine like terms: 19 + -19 = 0 0 + n = 0 + -19 n = 0 + -19 Combine like terms: 0 + -19 = -19 n = -19 Simplifying n = -19

Solution

n = {18, -19}

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