AnswersCR - Algebra 2 26-27 - S1Operations with Complex Numbers

Completing The Square Answers

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1
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Which equation illustrates the identity property of multiplication?

A
(a + bi) × c = (ac + bci)
B
(a + bi) × 0 = 0
C
(a + bi) × (c + di) = (c + di) × (a + bi)
D
(a + bi) × 1 = (a + bi)
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Donte simplified the expression below.What mistake did Donte make?

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A
He did not apply the distributive property correctly for 4(1 + 3i).
B
He did not distribute the subtraction sign correctly for 8 – 5i.
C
He added the real number and coefficient of i in 4(1 + 3i).
D
He added the two complex numbers instead of subtracted.

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