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A rectangular swimming pool is 7x – 8 units long and 3x + 5 units wide. Which polynomial best represents the surface area of the pool in square units? ​

A rectangular swimming pool is 7x – 8 units long and 3x + 5 units wide. Which polynomial best represents the surface area of the pool in square units? ​
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A rectangular swimming pool is 7x – 8 units long and 3x + 5 units wide. Which polynomial best represents the surface area of the pool in square units? ​

User Mrunal Gosar
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7.6k points

2 Answers

14 votes

Answer:

Explanation:

User Asgaut
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Multiply 7x-8 and 3x+5, which gives you 21x^2 +35x -24x - 40. This gives you 21^2 + 11x - 40.
User Nick Stamas
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8.6k points
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