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(2-8j)(5+6j)


please help answer this

User Toby Mills
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1 Answer

3 votes

Answer:

-48j²-28j+10

Explanation:

Multiple each term in the first parentheses by each term in the second parentheses (FOIL)

2×5 + 2×6j - 8j×5 - 8j×6j

Multiple the numbers

=10 + 2 × 6j - 8j × 5 - 8j × 6j

=10 + 12j - 8j × 5 - 8j × 6j

=10 + 12j - 40j - 8j × 6j

= 10 + 12j - 40j - 48j²

Collect like terms

10 - 28j - 48j²

Reorder the terms using the commutative property

-48j² - 28j + 10

Hope this was timely!

Have a great week (or weekend)!

;-)

User Tragomaskhalos
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