(k+1)(k-1)=-72

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Solution for (k+1)(k-1)=-72 equation:


Simplifying
(k + 1)(k + -1) = -72
Reorder the terms:
(1 + k)(k + -1) = -72
Reorder the terms:
(1 + k)(-1 + k) = -72
Multiply (1 + k) * (-1 + k)
(1(-1 + k) + k(-1 + k)) = -72
((-1 * 1 + k * 1) + k(-1 + k)) = -72
((-1 + 1k) + k(-1 + k)) = -72
(-1 + 1k + (-1 * k + k * k)) = -72
(-1 + 1k + (-1k + k2)) = -72
Combine like terms: 1k + -1k = 0
(-1 + 0 + k2) = -72
(-1 + k2) = -72
Solving
-1 + k2 = -72
Solving for variable 'k'.
Move all terms containing k to the left, all other terms to the right.
Add '1' to each side of the equation.
-1 + 1 + k2 = -72 + 1
Combine like terms: -1 + 1 = 0
0 + k2 = -72 + 1
k2 = -72 + 1
Combine like terms: -72 + 1 = -71
k2 = -71
Simplifying
k2 = -71
Reorder the terms:
71 + k2 = -71 + 71
Combine like terms: -71 + 71 = 0
71 + k2 = 0
The solution to this equation could not be determined.

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