Question

How do you factor `1-125b^3`?

Answer 1

`(1-5b)(1+5b+25b^2)`

Explanation:

`"this is a "color(blue)"difference of cubes"`

`•color(white)(x)a^3-b^3=(a-b)(a^2+ab+b^2)`

`"here "a=1" and "b=5b`

`1-125b^3=(1-5b)(1+5b+25b^2)`