1 Answer

Veronika D · Answer 1 · 2020-03-28T06:44:50+0000

Answer:

5x^2 +x - 14

Explanation:

The area of the grass left will be the area of the total of the background subtract the area of the patio.

The area of the backyard is
(3x+5)(2x-1) = 6x^2 +7x - 5

The area of the patio is
(x+3)(x+3) = x^2 + 6x + 9

Subtract the two areas to have the area of the leftover grass.

$6x^2 + 7x - 5 - (x^2 + 6x + 9)\\5x^2 +x - 14$

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