Question 8 • Fall 24 GMS Advanced Algebra: Concepts and Connections A
Distribute each term: (2)(−1) + (2)(4i) + (−7i)(−1) + (−7i)(4i) = −2 + 8i + 7i − 28i². Since i² = −1, the last term is +28, giving 26 + 15i. The correct choice is A, 26 + 15i.
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