n(7n+28)=539

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Solution for n(7n+28)=539 equation:


Simplifying
n(7n + 28) = 539

Reorder the terms:
n(28 + 7n) = 539
(28 * n + 7n * n) = 539
(28n + 7n2) = 539

Solving
28n + 7n2 = 539

Solving for variable 'n'.

Reorder the terms:
-539 + 28n + 7n2 = 539 + -539

Combine like terms: 539 + -539 = 0
-539 + 28n + 7n2 = 0

Factor out the Greatest Common Factor (GCF), '7'.
7(-77 + 4n + n2) = 0

Factor a trinomial.
7((-11 + -1n)(7 + -1n)) = 0

Ignore the factor 7.

Subproblem 1

Set the factor '(-11 + -1n)' equal to zero and attempt to solve: Simplifying -11 + -1n = 0 Solving -11 + -1n = 0 Move all terms containing n to the left, all other terms to the right. Add '11' to each side of the equation. -11 + 11 + -1n = 0 + 11 Combine like terms: -11 + 11 = 0 0 + -1n = 0 + 11 -1n = 0 + 11 Combine like terms: 0 + 11 = 11 -1n = 11 Divide each side by '-1'. n = -11 Simplifying n = -11

Subproblem 2

Set the factor '(7 + -1n)' equal to zero and attempt to solve: Simplifying 7 + -1n = 0 Solving 7 + -1n = 0 Move all terms containing n to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -1n = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -1n = 0 + -7 -1n = 0 + -7 Combine like terms: 0 + -7 = -7 -1n = -7 Divide each side by '-1'. n = 7 Simplifying n = 7

Solution

n = {-11, 7}

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