CCSS HSN-CN.A.2 Worksheets
Algebra 2 · The Complex Number System
Use the relation i² = -1 together with the commutative, associative and distributive properties to add, subtract and multiply complex numbers, and divide them using the conjugate.
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Teaching guide
What students learn
Use the relation i² = -1 together with the commutative, associative and distributive properties to add, subtract and multiply complex numbers, and divide them using the conjugate.
Worked example
Simplify: (-5 - 8i) + (3 + 7i)
Answer: -2 - i
Why: Real parts: (-5) + (3) = -2. Imaginary parts: (-8) + (7) = -1. Sum: -2 - i.
Generated and checked in code, so it is correct.
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