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Mathematics 21 Online
OpenStudy (anonymous):

The Johnsons want to cover their backyard with new grass. Their backyard is rectangular, with a length of 3x – 5 feet and a width of 4x – 10 feet. However, their rectangular swimming pool, along with its surrounding patio, has dimensions of x + 8 by x – 2 feet. What is the area of the region of the yard that they want to cover with new grass?

OpenStudy (anonymous):

*3x-5

OpenStudy (anonymous):

@dtan5457

OpenStudy (anonymous):

(3x-5)(4x-10) - (x+8)(x-2)

OpenStudy (anonymous):

Wouldn't that simplify to 12x^2-50x=50^2?

OpenStudy (anonymous):

it cant be 11 x^2 because you forgot to subtract x^2 from the latter part.

OpenStudy (anonymous):

So its 11x^2-56x+66^2?

OpenStudy (anonymous):

Or are you saying that can't be the answer?

OpenStudy (anonymous):

11x^2 will definitely be in the answer, but I haven't calculated the rest

OpenStudy (anonymous):

\(\Huge\ \ Thanks! \)

OpenStudy (anonymous):

:)

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