n^2-10=5n+4

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Solution for n^2-10=5n+4 equation:


Simplifying
n2 + -10 = 5n + 4

Reorder the terms:
-10 + n2 = 5n + 4

Reorder the terms:
-10 + n2 = 4 + 5n

Solving
-10 + n2 = 4 + 5n

Solving for variable 'n'.

Reorder the terms:
-10 + -4 + -5n + n2 = 4 + 5n + -4 + -5n

Combine like terms: -10 + -4 = -14
-14 + -5n + n2 = 4 + 5n + -4 + -5n

Reorder the terms:
-14 + -5n + n2 = 4 + -4 + 5n + -5n

Combine like terms: 4 + -4 = 0
-14 + -5n + n2 = 0 + 5n + -5n
-14 + -5n + n2 = 5n + -5n

Combine like terms: 5n + -5n = 0
-14 + -5n + n2 = 0

Factor a trinomial.
(-2 + -1n)(7 + -1n) = 0

Subproblem 1

Set the factor '(-2 + -1n)' equal to zero and attempt to solve: Simplifying -2 + -1n = 0 Solving -2 + -1n = 0 Move all terms containing n to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + -1n = 0 + 2 Combine like terms: -2 + 2 = 0 0 + -1n = 0 + 2 -1n = 0 + 2 Combine like terms: 0 + 2 = 2 -1n = 2 Divide each side by '-1'. n = -2 Simplifying n = -2

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 = {-2, 7}

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