# math

posted by Haley

how do I write (8-3i)(-2-3i) in standard form?

1. Scott

FOIL the binomials

-16 - 24i + 6i + 9i^2 ... i^2 is (√-1)^2

collect like terms

-25 - 18i

2. Haley

thank you so much

3. Haley

again, thank you, but if I may ask, how did you get the square root sign? I am just trying to understand it:)

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