Write two equivalent expression that represent the rectangular array below

2a 5

3

e

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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

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