9
AssignmentMultiple Choice

Complex Numbers

Question 9 • Algebra III A

Multiply (2 – 7i)(–1 + 4i).

Answer
A
26 + 15i
B
–2 – 28i
C
26 + i
D
–30 + 15i

Explanation

Use distribution: (2 − 7i)(−1 + 4i) = −2 + 8i + 7i − 28i². Since i² = −1, this becomes 26 + 15i, which is choice A.

AI-written and checked against the verified answer.

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