Question

factorise:- 27x°- 8y?​

Answer 1

Step-by-step explanation:

3x+2y=20

Cubing both sides,

(3x+2y)=20

or, (3x)+(2y) 8+3.3x.2y(3x+2y)=8000

or, 27x3+8y3+18xy(20)=8000 [, 3x+2y=D20]

or, 27xº+8y8+1811/9x20=8000 [:, xy=11/9]

or, 27x³+8y³+2x220=8000

or, 27x8+8y3+440=8000

or, 27x+8y3=8000-440

or, 27x³+8y³=7560