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Practice problem

Invertible Matrix Theorem

By Cameron Montag
A=[xx+25x+32x3x+63x16x+3]A = \begin{bmatrix} x & x + 2 & 5x + 3 \\ 2 & x & 3x + 6 \\ 3x & 1 & 6x + 3 \end{bmatrix}

For how many values of xx is AA invertible?

Choose one answer

Type a concept, like “slope” or “photosynthesis”.

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