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A rectangle has length c and width 2d. Another rectangle has length 4 and width (5-c). Write a simplified expression of their combined area.
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A rectangle has length c and width 2d. Another rectangle has length 4 and width (5-c). Write a simplified expression of their combined area.

User Steven Rogers
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The combined area is area of the first rectangle plus area of the second rectangle.
Area of first rectangle = c x 2d = 2cd
Area of second rectangle = 4(5 - c) = 20 - 4c

Combined area = 2cd + 20 - 4c
User Encombe
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