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Xavier performs the elementary row operation represented by R1−12R2 on matrix A.

A=[ 4  3  0 ]

     [-6 -3 12]

What matrix results from this transformation?

Enter your answer by filling in the boxes. Enter any fractions as simplified fractions.

 Sep 26, 2022
 #1
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If I've interpreted your question correctly, then , assuming that it's row1 replaced by row1 - 12*row2, we have
 

A → [4 - 12*(-6),   3 - 12*(-3),   0 - 12*12]

        [       -6,              -3,                 12    ]

 

I'll leave you to do the number crunching!

 Sep 27, 2022

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