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## Homework Statement

I got a solution for finding eigen values. It evaluates to:

(Lambda)^3 -12(lambda) -16=0, Then it that the list of possible integer solutions is:

+-1, +-2, +-4, _-8, +-16 (i.e. plus minus 1, plus minus 2 and so on).

I cant understand, why he says list of possible solution is this, when only lambda = 4 satisfies the eq..

Zulfi.

## Homework Equations

(Lambda)^3 -12(lambda) -16=0

## The Attempt at a Solution

Only lamda =4 satisfies the eq while other values do not.

The solution provided by web site isttached/.

Zulfi