4n^2=45+8n

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Solution for 4n^2=45+8n equation:


Simplifying
4n2 = 45 + 8n

Solving
4n2 = 45 + 8n

Solving for variable 'n'.

Reorder the terms:
-45 + -8n + 4n2 = 45 + 8n + -45 + -8n

Reorder the terms:
-45 + -8n + 4n2 = 45 + -45 + 8n + -8n

Combine like terms: 45 + -45 = 0
-45 + -8n + 4n2 = 0 + 8n + -8n
-45 + -8n + 4n2 = 8n + -8n

Combine like terms: 8n + -8n = 0
-45 + -8n + 4n2 = 0

Factor a trinomial.
(-5 + -2n)(9 + -2n) = 0

Subproblem 1

Set the factor '(-5 + -2n)' equal to zero and attempt to solve: Simplifying -5 + -2n = 0 Solving -5 + -2n = 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 + -2n = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -2n = 0 + 5 -2n = 0 + 5 Combine like terms: 0 + 5 = 5 -2n = 5 Divide each side by '-2'. n = -2.5 Simplifying n = -2.5

Subproblem 2

Set the factor '(9 + -2n)' equal to zero and attempt to solve: Simplifying 9 + -2n = 0 Solving 9 + -2n = 0 Move all terms containing n to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -2n = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -2n = 0 + -9 -2n = 0 + -9 Combine like terms: 0 + -9 = -9 -2n = -9 Divide each side by '-2'. n = 4.5 Simplifying n = 4.5

Solution

n = {-2.5, 4.5}

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