Question

X/y+5/y=-1then find the value of x³-y³

Answer 1

Answer:

Step-by-step explanation:

Given, x+y=5,xy=6

(x+y)  

3

=x  

3

+y  

3

+3xy(x+y)

Therefore, 5  

3

=x  

3

+y  

3

+3(6)(5)

⇒125=x  

3

+y  

3

+90

⇒x  

3

+y  

3

=125−90=35