Question

(3x - 5y) ^ 3 - (5x - 2y) ^ 3 + (2x + 3y) ^ 3

Answer 1

Step-by-step explanation:

3(3x−5y)(5x−2y)(2x+3y)

let a=3x−5y, $$b = 2y - 5x andc = 2x + 3y$$ 

∴a+b+c=0

Hence, a3+b3+c3=3abc

So, (3x−5y)3−(5x−2y)3+(2x+3y)3

=3(3x−5y)(2y−5x)(2x+3y)

=−3(3x−5y)(5x−2y)(2x+3y)

Answer 2

Answer:

3 ( 3×-5y ) ( 5×-2y) ( 2 ×+3y)