jadabada16
jadabada16
05-10-2016
Mathematics
contestada
What is equivalent to (4+5i)(4-5i)
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Patronus1619
Patronus1619
05-10-2016
(4+5i)(4-5i)=(4)²-(5i)²=16-25(i)²=16-25(-1)=16+25=41
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ForeverNeedsHelp2
ForeverNeedsHelp2
05-10-2016
16-25i because you have to find like terms and since there are parenthesis you have to mutiply the like terms
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