WILL GIVE EXTRA POINT Which theorem/postulates states the triangles below are congruent?
AB is parallel to DC AND AC is parallel to DB (it isn't marked, but they ARE parallel).

Triangle ABC is congruent to Triangle DCB. Select the THREE correct answers.
A. AAS
B. ASA
C. SAS
D. SSS
E. HL

30

step-by-step explanation:

times by times

step-by-step explanation:

k

step-by-step explanation:

domit

hello from mrbilldoesmath!

answer:   (7x + 6y) ( 49x^2 - 42xy + 36y^2)

discussion:

in general, the factorization of a^3 + b^3 is

a^3 + b^ 3 = (a + b) ( a^2 - ab + b^2)

in our case note that 343 = 7^3 and 216 = 6^3 so the equation becomes:

343x^3 + 216y^3 = (7x)^3 + (6y)^3

if you think of a (above) as 7x and b as 6y the factorization becomes

343x^3 + 216y^3 =

((7x + 6y) (   (7x)^2 - 7x*6y + (6y)^2)   =

(7x + 6y) ( 49x^2 - 42xy + 36y^2)

you,

mrb

(a + b) (a^2 - a b + b^2)