Posted by justme on .
8/125x^3 + 64y^6
i tried doinhg this but i still don't get it..pls help me...

math 
MathMate,
Read the question as:
8/125x^3 + 64y^6
=(2x/5)³+(2y²)³
You will need the standard identity:
a^3+b^3=(a+b)(a^2ab+b^2)
Give it another try.