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    Mathematics
  3. Study Set
    Elementary Intermediate Algebra
  4. Exam
    Exam 9: Radical Expressions and Equations
  5. Question
    Multiply. --4i ∙ 5i
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Multiply. --4i ∙ 5i

Question 137

Question 137

Multiple Choice

Multiply.
--4i ∙ 5i


A) 9
B) 20
C) -9D) -20

Correct Answer:

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