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User Kevin Ding
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1 Answer

5 votes

Answer:

10x^2+8,14x^2+2

Explanation:

2x+4*5x+2, 2x*5x=10x^2, 4*2=8 Answer=10x^2+8

7x+2*2x+1, 7x*2x=14x^2, 2*1=2 Answer=14x^2+2

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User Rossco
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