7n^2-22n=-16

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Solution for 7n^2-22n=-16 equation:


Simplifying
7n2 + -22n = -16

Reorder the terms:
-22n + 7n2 = -16

Solving
-22n + 7n2 = -16

Solving for variable 'n'.

Reorder the terms:
16 + -22n + 7n2 = -16 + 16

Combine like terms: -16 + 16 = 0
16 + -22n + 7n2 = 0

Factor a trinomial.
(8 + -7n)(2 + -1n) = 0

Subproblem 1

Set the factor '(8 + -7n)' equal to zero and attempt to solve: Simplifying 8 + -7n = 0 Solving 8 + -7n = 0 Move all terms containing n to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + -7n = 0 + -8 Combine like terms: 8 + -8 = 0 0 + -7n = 0 + -8 -7n = 0 + -8 Combine like terms: 0 + -8 = -8 -7n = -8 Divide each side by '-7'. n = 1.142857143 Simplifying n = 1.142857143

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 = {1.142857143, 2}

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