Get solution: In 120, use either Gaussian elimination or GaussJordan elimination to
Chapter 8, Problem 12(choose chapter or problem)
In Problems 11 and 12, determine the values of x and y for which the matrices are equal.
\(\left(\begin{array}{ll} x^{2} & 1 \\ y & 5 \end{array}\right),\left(\begin{array}{cc} 9 & 1 \\ 4 x & 5 \end{array}\right)\)
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