payshencec21 payshencec21

27-05-2018
Mathematics

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Please help! 57 points (:

Please help 57 points class=

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jonesbryce1999p8ff94 jonesbryce1999p8ff94

27-05-2018

I think the answer is d z+15

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trainboxcar20 trainboxcar20

27-05-2018

The answer would be z+15. Using the foil method to check, the two z's equal z^2. Then, there is 15 z and -6 z, which equal 9z. Then -6*15=-90.

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