Question 6 • Advanced Algebra: Concepts and Connections
Expand the determinant along the first row: 0 − 2[(-1)(-2) − (5)(6)] + 3[(-1)(3) − (3)(6)]. This becomes −2(2 − 30) + 3(−3 − 18) = 56 − 63 = −7. The determinant is negative 7, choice D.
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