Asked by Christina

Simplify (7-3i)^2.

So would I do this:

(7-3i) (7-3i)

then distribute it .... OR

(7-3i)^2
square everything 49+9i^2

? thanks

14 years ago

Answered by Kay

First option is correct.

It is of the form

(a-b)^2 = a^2 - 2ab + b^2

14 years ago

Answered by Christina

thank you, okay I wasn't' sure

14 years ago

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