(4n+3)(3n-2)+5n=30

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Solution for (4n+3)(3n-2)+5n=30 equation:


Simplifying
(4n + 3)(3n + -2) + 5n = 30

Reorder the terms:
(3 + 4n)(3n + -2) + 5n = 30

Reorder the terms:
(3 + 4n)(-2 + 3n) + 5n = 30

Multiply (3 + 4n) * (-2 + 3n)
(3(-2 + 3n) + 4n * (-2 + 3n)) + 5n = 30
((-2 * 3 + 3n * 3) + 4n * (-2 + 3n)) + 5n = 30
((-6 + 9n) + 4n * (-2 + 3n)) + 5n = 30
(-6 + 9n + (-2 * 4n + 3n * 4n)) + 5n = 30
(-6 + 9n + (-8n + 12n2)) + 5n = 30

Combine like terms: 9n + -8n = 1n
(-6 + 1n + 12n2) + 5n = 30

Reorder the terms:
-6 + 1n + 5n + 12n2 = 30

Combine like terms: 1n + 5n = 6n
-6 + 6n + 12n2 = 30

Solving
-6 + 6n + 12n2 = 30

Solving for variable 'n'.

Reorder the terms:
-6 + -30 + 6n + 12n2 = 30 + -30

Combine like terms: -6 + -30 = -36
-36 + 6n + 12n2 = 30 + -30

Combine like terms: 30 + -30 = 0
-36 + 6n + 12n2 = 0

Factor out the Greatest Common Factor (GCF), '6'.
6(-6 + n + 2n2) = 0

Factor a trinomial.
6((-2 + -1n)(3 + -2n)) = 0

Ignore the factor 6.

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 '(3 + -2n)' equal to zero and attempt to solve: Simplifying 3 + -2n = 0 Solving 3 + -2n = 0 Move all terms containing n to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -2n = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -2n = 0 + -3 -2n = 0 + -3 Combine like terms: 0 + -3 = -3 -2n = -3 Divide each side by '-2'. n = 1.5 Simplifying n = 1.5

Solution

n = {-2, 1.5}

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