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skad [1K]
3 years ago
11

A rectangle desktop has a length of 3(x+2) units and a width of (x-7). Write an expression for the area

Mathematics
1 answer:
yanalaym [24]3 years ago
5 0

Answer:

Expression for area = 3x² - 15x - 42

Step-by-step explanation:

Given that:

Length of rectangle desktop = 3(x+2) = 3x+6 units

Width of rectangle desktop = x - 7

Area of rectangle desktop = Length * Width

Area of desktop = (3x+6)(x-7)

Area = 3x(x-7) +6(x-7)

Area = 3x² - 21x + 6x - 42

Area = 3x² - 15x - 42

Hence,

Expression for area = 3x² - 15x - 42

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