It should be C. the first floor is going to be 13 feet longer, so x squared +13 is going to be the first floor
5,510 divided by 56 equals 98.392
“My neighbor owns his own property” your book said non mathematical, but tell me if it’s supposed to be. I can write you a new one.
5x^2 - (2x - 3)^2 =
5x^2 - ((2x - 3)(2x - 3)) =
5x^2 - (4x^2 - 6x - 6x + 9) =
5x^2 - (4x^2 - 12x + 9) =
5x^2 - 4x^2 + 12x - 9 =
x^2 + 12x - 9 <===
