The area of a rectangular mirror is 8 15 16 square feet. The width of the mirror is 3 1 4 feet. If there is a 3-foot tall space on the wall to hang the mirror, will it fit? Explain. fit because the height is

other answer is correct. i had used the radius of the radius somehow. a website:

hello from mrbilldoesmath!

answer:

(7 x + 6 y) (49 x^2 - 42 x y + 36 y^2)

discussion:

the trick is to recognize that 343 = 7^3 and 216 = 6^3 and, in general,

a^3 + b^3 =   (a + b) (a^2 - a b + b^2).

in our case

343x^3+216y^3   =   (7x)^3 + (6y)^3

so take a = 7x and b = 6y in the above equation to get the answer.

you,

mrb

the correct answer is c