Answer in the next 5 minutes and you will get ! which polynomial is written in standard form for the polynomial below? 6x+x^2-x^4+3 a. -x^4+x^2+6x+3 b. x^4+x^2+6x+3 c. 6x+x^2+x^4+3 d. 6x-x^2-x^4+3

step-by-step explanation:

what is the figure? attach a picture.

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