(5n-4)(3n+1)=0

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Solution for (5n-4)(3n+1)=0 equation:


Simplifying
(5n + -4)(3n + 1) = 0

Reorder the terms:
(-4 + 5n)(3n + 1) = 0

Reorder the terms:
(-4 + 5n)(1 + 3n) = 0

Multiply (-4 + 5n) * (1 + 3n)
(-4(1 + 3n) + 5n * (1 + 3n)) = 0
((1 * -4 + 3n * -4) + 5n * (1 + 3n)) = 0
((-4 + -12n) + 5n * (1 + 3n)) = 0
(-4 + -12n + (1 * 5n + 3n * 5n)) = 0
(-4 + -12n + (5n + 15n2)) = 0

Combine like terms: -12n + 5n = -7n
(-4 + -7n + 15n2) = 0

Solving
-4 + -7n + 15n2 = 0

Solving for variable 'n'.

Factor a trinomial.
(-1 + -3n)(4 + -5n) = 0

Subproblem 1

Set the factor '(-1 + -3n)' equal to zero and attempt to solve: Simplifying -1 + -3n = 0 Solving -1 + -3n = 0 Move all terms containing n to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + -3n = 0 + 1 Combine like terms: -1 + 1 = 0 0 + -3n = 0 + 1 -3n = 0 + 1 Combine like terms: 0 + 1 = 1 -3n = 1 Divide each side by '-3'. n = -0.3333333333 Simplifying n = -0.3333333333

Subproblem 2

Set the factor '(4 + -5n)' equal to zero and attempt to solve: Simplifying 4 + -5n = 0 Solving 4 + -5n = 0 Move all terms containing n to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -5n = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -5n = 0 + -4 -5n = 0 + -4 Combine like terms: 0 + -4 = -4 -5n = -4 Divide each side by '-5'. n = 0.8 Simplifying n = 0.8

Solution

n = {-0.3333333333, 0.8}

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