n^2+7n=98

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Solution for n^2+7n=98 equation:


Simplifying
n2 + 7n = 98

Reorder the terms:
7n + n2 = 98

Solving
7n + n2 = 98

Solving for variable 'n'.

Reorder the terms:
-98 + 7n + n2 = 98 + -98

Combine like terms: 98 + -98 = 0
-98 + 7n + n2 = 0

Factor a trinomial.
(-14 + -1n)(7 + -1n) = 0

Subproblem 1

Set the factor '(-14 + -1n)' equal to zero and attempt to solve: Simplifying -14 + -1n = 0 Solving -14 + -1n = 0 Move all terms containing n to the left, all other terms to the right. Add '14' to each side of the equation. -14 + 14 + -1n = 0 + 14 Combine like terms: -14 + 14 = 0 0 + -1n = 0 + 14 -1n = 0 + 14 Combine like terms: 0 + 14 = 14 -1n = 14 Divide each side by '-1'. n = -14 Simplifying n = -14

Subproblem 2

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

Solution

n = {-14, 7}

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