PSAT Math : How to multiply complex numbers

Study concepts, example questions & explanations for PSAT Math

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Example Questions

Example Question #1181 : Psat Mathematics

Simplify:

Possible Answers:

Correct answer:

Explanation:

Use the FOIL method that states to multiply the Firsts, Outter, Inner, Lasts. Also remember that  :

 

 

 

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