SOLUTION: Solve for x if X 1 0 1 X 1 2 3 2 = -4x.

Algebra ->  Matrices-and-determiminant -> SOLUTION: Solve for x if X 1 0 1 X 1 2 3 2 = -4x.      Log On


   

Question 1100816: Solve for x if




X 1 0
1 X 1
2 3 2 = -4x.
Found 2 solutions by greenestamps, josgarithmetic:
Answer by greenestamps(13214) About Me  (Show Source):
You can put this solution on YOUR website!

Since you called this a matrices and determinants question, I will assume that is a determinant.... (No, I wouldn't know how to show it as a determinant either....)

Then
x%282x-3%29-1%282-2%29%2B0+=+-4x
2x%5E2-3x+=+-4x
2x%5E2%2Bx+=+0
x%282x%2B1%29+=+0

The two solutions are x=0 and x = -1/2.

Answer by josgarithmetic(39630) About Me  (Show Source):
You can put this solution on YOUR website!
(Only showing how to show a matrix; not how to solve)

(matrix(3,3,
X,1,0,
1,X,1,
2,3,2))

Put inside the triple-braces rendering tag
%28matrix%283%2C3%2C%0D%0AX%2C1%2C0%2C%0D%0A1%2CX%2C1%2C%0D%0A2%2C3%2C2%29%29%0D%0A