A school is building a rectangular garden. The school only has enough money to buy 20 feet of fencing to enclose the garden. The area of the garden is represented by the function
A(z)
-2x² + 20%
where x is the width in feet.

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

just keep asking questions until you have a better understanding.

step-by-step explanation:

ome people is not even worth it to even try it in the air.

step-by-step explanation: