dede5250 dede5250

29-12-2017
Mathematics

contestada

Which is equivalent to the expression below? the quantity 2 minus 5 eye, close quantity, times the quantity 4 plus 7 eye,?

Respuesta :

tynollette tynollette

29-12-2017

(2-5i)(4+7i)=2(4+7i)-5i(4+7i)=8+14i-20i-35i²
recall that i²=-1,
8-6i+35=43-6i
43-6i is the final answer

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