# How do you find #(A-2I)^2X=0# given #A=((3, 1, -2), (-1, 0, 5), (-1, -1, 4))#?

##### 1 Answer

Jun 16, 2018

#### Answer:

I tried this but I am not sure about it...I'll ask for review anyway.

#### Explanation:

have a look:

One solution would be (the trivial one):

I think that the three equations aren't independent (the first one is the third multiplyed by