Substitution and elimination, and matrix methods such as the Gauss-Jordan method and Cramer's rule. Use each method at least once when solving the systems below. include solutions with nonreal complex number components. For systems with infinitely many solutions, write the solution set using an arbitrary variable.
Find the general solution of the following equation.
For each of the following pairs, write a and b in standard form and use these factorizations to find (a, b) and [a, b].
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