Describe the mistake that Kwame made in his work.

Step-by-step explanation:

He forgot to subtract thr 2x + 10 from 4, the equation would be 14 - 2x

Kwame first needed to distribute the -2 instead of adding 4 and -2

Step-by-step explanation:

It should be like this instead:

4-2x-10

-2x-6

The answer suppose to be:

-2x-6

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

m=-16

step-by-step explanation: