SOLUTION: x-1 1 2 1 1-x 1 all equal zero -1 1 2-x find x? NB the question is matrix

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Question 1131434: x-1 1 2
1 1-x 1 all equal zero
-1 1 2-x
find x?
NB the question is matrix
Found 2 solutions by ikleyn, josgarithmetic:
Answer by ikleyn(52794) About Me  (Show Source):
You can put this solution on YOUR website!
.

            What the words "all equal zero" mean ?



Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!


Goal is solve for x, if your matrix has determinant of 0 ?