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OpenStudy (anonymous):
Write the product in standard form. ( 9 + 5i)( 9 + 8i)
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OpenStudy (cwrw238):
= 9\9 + 8i) + 5i(9 + 8i) can u continue?
OpenStudy (cwrw238):
note i*i = -1
OpenStudy (anonymous):
is that 9/9 or 9(9 ??
OpenStudy (cwrw238):
sorry its 9(9
OpenStudy (anonymous):
so i foil it right?
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OpenStudy (anonymous):
Thank you
OpenStudy (cwrw238):
yes you can foil it if u like to talk mathematics though you use the distributive law with 9 and 5i over the second bracket
OpenStudy (cwrw238):
yw
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