Pq lies on plane pqr. point s lies on plane pqr. qs does not lie on plane pqr. which two statements contradict each other? a-none of the statements contradict each other. b-1 and 3 c-2 and 3 d-1 and 2

Answer c: 2 and 3

Of course Q is on plane PQR. If S is as well, then QS is as well.

step-by-step explanation:

options

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