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Back to Add, subtract, and multiply complex numbers — Problem 3 · Task Set 8

Exercises: Add, Subtract, and Multiply Complex Numbers

Show your work. Write all answers in standard form $a + bi$.

Grade 9·21 problems·~30 min·Common Core Math - HS Number and Quantity·standard·hsn-cn-a-2
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Warm-Up: Review What You Know

1.

Expand (2+3)(2−3)(2 + 3)(2 - 3) using the difference-of-squares pattern (a+b)(a−b)=a2−b2(a + b)(a - b) = a^2 - b^2.