The greek dark age was followed by select one: a. a sudden flowering of artistic and literary genius. b. the defeat in battle of athens' great rival sparta. c. the athenians' decision to limit trade and create a self-sufficient economy. d. the athenians' tendency to neglect the arts and concentrate on developing military skills. e. a loosening of their control over members of the delian league.

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

a 90 degree rotation across the the origin followed by a reflection across the x-axis.

step-by-step explanation: