# Algebra

posted by
**Juri**
.

Simplify (b^3)(ab-1)((ab)^2+ab+1)

Hint: The last two factors sure look like the difference of two cubes to me. Have you tried that?

posted by
**Juri**
.

Simplify (b^3)(ab-1)((ab)^2+ab+1)

Hint: The last two factors sure look like the difference of two cubes to me. Have you tried that?