Question

Pls ans guyzzz
plz plz plz plz​

Answer 1

Answer:

0

Step-by-step explanation:

something is missing here,

(y -x) in place (x +y) you take ,

x = (27)⅓ and y = (28)⅓

(y-x) - 1/(x² +xy +y²)

{(y - x)(x²+xy+y²) -1 }/(x²+xy+y²)

use formula,

(a-b)(a²+ab+b²) = a³ -b³

now,

{ y³ - x³ -1}/(x² +xy +y²)

(28 -27 -1)/(x²+xy+y²)

= 0