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EastWind [94]
3 years ago
15

Which of the following represents the area of a rectangle whose length is 3x + 5 and whose width is x − 2? 3x2 − x − 10 3x2 − 10

3x2 + x − 10 3x2 − 11x − 10
Mathematics
2 answers:
never [62]3 years ago
5 0
A = L * W
L = 3x + 5
W = x - 2

A = (3x + 5)(x - 2)
A = 3x(x - 2) + 5(x - 2)
A = 3x^2 - 6x + 5x - 10
A = 3x^2 - x - 10 <====

Whitepunk [10]3 years ago
5 0
A = L x W
L = 3x + 5
W = x - 2
 Therefore, 
A = (3x + 5)(x - 2)
A = 3x(x - 2) + 5(x - 2)
A = 3x^2 - 6x + 5x - 10
A = 3x^2 - x - 10

I hope you know how to write this down! Teachers love it when you show work!
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