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20 pts please answer this
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4 votes
20 pts please answer this

20 pts please answer this-example-1
User Laurita
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4 votes

Answer:

sorry

Explanation:

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User Danielfrg
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(5d-7)(5d-6)=(5d)(5d)+(5d)(-6)+(-7)(5d)+(-7)(-6)\\\\=25d^2-30d-35d+42=25d^2+\boxed{-65}d+42
User Serikov
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