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Mathematics 20 Online
OpenStudy (anonymous):

5(-4i+j) if u multiply that, then will it be -20i+5j ? would that j count as 1 ? or 0 ?

OpenStudy (anonymous):

it counts as 1, just as x = 1x

OpenStudy (anonymous):

soo you are correct

OpenStudy (anonymous):

ok cool :D

OpenStudy (anonymous):

-20i+5j :)

OpenStudy (anonymous):

too late! emily LOL!

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