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Bob is building a rectangular building to store equipment. He decided to make the length (4x-1) and the width (x+2). Write an expression for the area of the building?

Thank you

 Feb 7, 2016

Best Answer 

 #3
avatar+118608 
+5

Hi Guest and rarinstraw1195    laugh

 

 

Bob is building a rectangular building to store equipment. He decided to make the length (4x-1) and the width (x+2). Write an expression for the area of the building?

 

Think about this say the dimensions were  2 units by 3 units.  Then the area would be   2*3 unites squared.

What did I do .. I multiplied the length  by the breadth.

Well if that is what you ahve to do with numbers, you must do the same thing with the letters.

 

Area = (4x-1)*(x+2)    units squared

 

Area = (4x-1)(x+2)    units squared

 

You can expand this if you want or you can just leave it as it is. 

 Feb 7, 2016
 #1
avatar+5265 
+4

2((4x-1)+(x+2))

 

2(4x-1)+2(x+2)

 

8x-2+2x+4

 

Your expression will be 10x+2

 Feb 7, 2016
 #2
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+4

rarinstraw1195:

What is the AREA of a rectangle?

 Feb 7, 2016
 #3
avatar+118608 
+5
Best Answer

Hi Guest and rarinstraw1195    laugh

 

 

Bob is building a rectangular building to store equipment. He decided to make the length (4x-1) and the width (x+2). Write an expression for the area of the building?

 

Think about this say the dimensions were  2 units by 3 units.  Then the area would be   2*3 unites squared.

What did I do .. I multiplied the length  by the breadth.

Well if that is what you ahve to do with numbers, you must do the same thing with the letters.

 

Area = (4x-1)*(x+2)    units squared

 

Area = (4x-1)(x+2)    units squared

 

You can expand this if you want or you can just leave it as it is. 

Melody Feb 7, 2016

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