9n^2-16n-4=0

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Solution for 9n^2-16n-4=0 equation:


Simplifying
9n2 + -16n + -4 = 0

Reorder the terms:
-4 + -16n + 9n2 = 0

Solving
-4 + -16n + 9n2 = 0

Solving for variable 'n'.

Factor a trinomial.
(-2 + -9n)(2 + -1n) = 0

Subproblem 1

Set the factor '(-2 + -9n)' equal to zero and attempt to solve: Simplifying -2 + -9n = 0 Solving -2 + -9n = 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 + -9n = 0 + 2 Combine like terms: -2 + 2 = 0 0 + -9n = 0 + 2 -9n = 0 + 2 Combine like terms: 0 + 2 = 2 -9n = 2 Divide each side by '-9'. n = -0.2222222222 Simplifying n = -0.2222222222

Subproblem 2

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

Solution

n = {-0.2222222222, 2}

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