Andre spilled something on his math notebook and some parts of the problems he was working on were erased. Here is one of the problems: (    -2i)(   +2i)=     -10i

Algebra for College Students
10th Edition
ISBN:9781285195780
Author:Jerome E. Kaufmann, Karen L. Schwitters
Publisher:Jerome E. Kaufmann, Karen L. Schwitters
Chapter6: Quadratic Equations And Inequalities
Section6.4: Quadratic Formula
Problem 76PS
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Andre spilled something on his math notebook and some parts of the problems he was working on were erased. Here is one of the problems:

(    -2i)(   +2i)=     -10i

 

what could go in the blanks?

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