∠C is represented by the purple section on line p.
When mAngleC increases, what happens to the middle section on line p?
When mAngleC decreases, what happens to the middle section on line p?

29933333.33

step-by-step explanation:

a

step-by-step explanation:

nope.   happens to me as well.

-aparri

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