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cestrela7 [59]
3 years ago
5

The length of a rectangle is given by L=3y + 4x while the width is

Mathematics
1 answer:
Wittaler [7]3 years ago
3 0

Answer:

21y² +34 yx + 8x²

Step-by-step explanation:

Area of a rectangle is given by L×W where L is length, and W is width

Given L=3y+4x

          W=7y+2x

Area= (3y+4x) × (7y+2x)

          3y(7y+2x) + 4x(7y+2x)

           21y² + 6yx +28yx+8x²

            21y² +34 yx + 8x²

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