How would the sum of cubes formula be used to factor x3y3 + 343? EXPLAIN THE PROCESS. Do not write the factorization.

Question

jhonyy9 · Answer

there is 343 or the last 3 is exponent ?

anonymous · Answer

its x^3*y^3 +343

anonymous · Answer

i think thats what you asked idk...

jhonyy9 · Answer

so than you need check than the number 343 is a perfect cube number for what you need calcule cuberoot(343)= ?

anonymous · Answer

and the cuberoot of 343 is 7.

mathmale · Answer

Right; it is.  So, given the expression (xy)^3 + 343, how would you factor this?  Note that you are to discuss how you'd factor here, not to do the actual factoring (but you could do that also, on the side, to get a feel for what you need to explain in writing).