Question: -4 x+7 =2 Let A = 2 -3 1 |. For what values of x is A invertible? x+6 -7 D Compute the determinant of

-4 x+7 =2 Let A = 2 -3 1 |. For what values of x is A invertible? x+6 -7 D Compute the determinant of A (it will be a polynomial in x) and use it to answer this question. The matrix A is invertible for all x #

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