Solve the system for x and y using Cramer's rule. Assume a and b are nonzero constants.x + by = a2x + ay = b2
A. {(a2 + ab + b2, -b - a)}
B. {(a2 + 2ab + b2, -b - a)}
C. {(a2 + ab + b2, a + b)}
D. {(a2 + 2ab + b2, b - a)}
Answer: A
Mathematics
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