3. A survey states at the beginning that all information provided by respondents will be kept confidential. This is an example of a principle of proper
surveying.
Has the Prime Minister been doing a good job? Y/N" is a better way to

isi

step-by-step explanation:

use that smart brain

y=mx+

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