Construct aparallelogram ABC in which AB=7cm
AC = 6cm and BD=8cm.

Step-by-step explanation:

At first draw a line that is AB= 7cm

Then,

we have to know that AC and BD is a diagonal

Again,

Draw the line diagonal AC = 6cm from the exact

point of A.

Draw the 2nd diagonal that is BD = 8cm from the

exact point of B.

Then after join the line ( opposite side of

parallelogram is equal ) .

ANS

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)