8n^2-15n=-2+n^2

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Solution for 8n^2-15n=-2+n^2 equation:


Simplifying
8n2 + -15n = -2 + n2

Reorder the terms:
-15n + 8n2 = -2 + n2

Solving
-15n + 8n2 = -2 + n2

Solving for variable 'n'.

Reorder the terms:
2 + -15n + 8n2 + -1n2 = -2 + n2 + 2 + -1n2

Combine like terms: 8n2 + -1n2 = 7n2
2 + -15n + 7n2 = -2 + n2 + 2 + -1n2

Reorder the terms:
2 + -15n + 7n2 = -2 + 2 + n2 + -1n2

Combine like terms: -2 + 2 = 0
2 + -15n + 7n2 = 0 + n2 + -1n2
2 + -15n + 7n2 = n2 + -1n2

Combine like terms: n2 + -1n2 = 0
2 + -15n + 7n2 = 0

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

Subproblem 1

Set the factor '(1 + -7n)' equal to zero and attempt to solve: Simplifying 1 + -7n = 0 Solving 1 + -7n = 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 + -7n = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -7n = 0 + -1 -7n = 0 + -1 Combine like terms: 0 + -1 = -1 -7n = -1 Divide each side by '-7'. n = 0.1428571429 Simplifying n = 0.1428571429

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 = {0.1428571429, 2}

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