2n^3+5n^2=7n

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Solution for 2n^3+5n^2=7n equation:


Simplifying
2n3 + 5n2 = 7n

Reorder the terms:
5n2 + 2n3 = 7n

Solving
5n2 + 2n3 = 7n

Solving for variable 'n'.

Reorder the terms:
-7n + 5n2 + 2n3 = 7n + -7n

Combine like terms: 7n + -7n = 0
-7n + 5n2 + 2n3 = 0

Factor out the Greatest Common Factor (GCF), 'n'.
n(-7 + 5n + 2n2) = 0

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

Subproblem 1

Set the factor 'n' equal to zero and attempt to solve: Simplifying n = 0 Solving n = 0 Move all terms containing n to the left, all other terms to the right. Simplifying n = 0

Subproblem 2

Set the factor '(-7 + -2n)' equal to zero and attempt to solve: Simplifying -7 + -2n = 0 Solving -7 + -2n = 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 + -2n = 0 + 7 Combine like terms: -7 + 7 = 0 0 + -2n = 0 + 7 -2n = 0 + 7 Combine like terms: 0 + 7 = 7 -2n = 7 Divide each side by '-2'. n = -3.5 Simplifying n = -3.5

Subproblem 3

Set the factor '(1 + -1n)' equal to zero and attempt to solve: Simplifying 1 + -1n = 0 Solving 1 + -1n = 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 + -1n = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -1n = 0 + -1 -1n = 0 + -1 Combine like terms: 0 + -1 = -1 -1n = -1 Divide each side by '-1'. n = 1 Simplifying n = 1

Solution

n = {0, -3.5, 1}

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