Question

if 3x - 2 Y is equal to 13 and X Y is equal to 5 find the value of 27 x cube minus 8 y cube​

Answer 1

Answer:

Step-by-step explanation:

The answer is in the picture.

Please mark as brainliest if you are satisfied.

Answer 2

Answer:

3367

Step-by-step explanation:

The two equations are:

3x-2y=13 and xy=15

Now, if 3x-2y=13, then x=(13+2y)/3

Putting the value of x in xy=15, we have $(\frac{13+2y}{3})y=5\\2y^{2}+13y-15=0\\2y^{2}+15y-2y-15=0\\on solving we get y=1 then x= 5\\Now, 27x^{3}-8y^{3}=27(5^{3})-8(1)=27(125)-8=3375-8=3367$