How do I write two equivalent expressions that represent the rectangular array with 3, 2a, and 5

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Write two equivalent expression that represent the rectangular array below

       2a 5




Oct 25th, 2015

Thank you for the opportunity to help you with your question!


Length = 2a + 5

Width = 3

First expression is the area of the rectangle = length x width = 3(2a + 5)

Expand it using distributive property=> a(b + c) = ab + ac

3(2a + 5) = 3x2a + 3x5 = 6a + 15 

is the second equivalent expression.

ANSWER: 3(2a + 5) and 6a + 15 


Please let me know if you need any clarification. I'm always happy to answer your questions.
Oct 25th, 2015

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