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Please help! 57 points (:
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3 votes
Please help! 57 points (:

Please help! 57 points (:-example-1
User Sergey Alaev
by
6.2k points

2 Answers

3 votes
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.
User Rrichter
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5.4k points
4 votes
I think the answer is d z+15
User Keen Jin
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6.1k points
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