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grade 11 · A2-006

Multiply complex numbers

Distribute complex factors and replace i squared with negative one before combining terms.

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Show what I knowFresh problem · seed 708309847

Multiply \((4 + 4i)(1 + 3i)\).

44i13ii²

Choose an answer\(16 + 16i\)\(-8 + 8i\)\(4 + 12i\)\(-8 + 16i\)

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Math Lab is a working name for Ready Rung's separate math-learning product. Guided success and independent evidence are reported separately.