Posted by JustinBieber on .
8x^3125
X^Y^3X^2Y^5
Pls show me steps

Math 
Reiny,
8x^3125
This is a difference of cubes which has the pattern
A^3  B^3 = (AB)(A^2 + AB + B^2)
so 8x^3125
= (2x  5)(4x^2 + 10x + 25)
you have a typo in your second, but it looks like there would be a common factor.