Completing The Square Answers

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Which equation illustrates the identity property of multiplication?

(a + bi) × c = (ac + bci)

(a + bi) × 0 = 0

(a + bi) × (c + di) = (c + di) × (a + bi)

(a + bi) × 1 = (a + bi)

Donte simplified the expression below.What mistake did Donte make?

He did not apply the distributive property correctly for 4(1 + 3i).

He did not distribute the subtraction sign correctly for 8 – 5i.

He added the real number and coefficient of i in 4(1 + 3i).

He added the two complex numbers instead of subtracted.

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