If a 4X4 matrix A with rows v1, v2, v3, and v4 has determinant det A = -8 then det |(4v1+3v4)| |___v2___| |___v3___| =? |(8v1+9v4)| - I put the underscores for spacing. 3. The attempt at a solution - I haven't attempting anything on this problem. There are no examples even remotely like this in the text and we haven't been shown anything like this in class, so I really have no clue how to even start. Please help.