Question

What is the greatest common factor for the following expression? 3x^2 -9x *

Answer 1

`\mathbf{3x}` is the greatest common factor for the expression:
`3x^2 -9x`

Explanation:

We need to find the greatest common factor for the following expression:
`3x^2 -9x`

Greatest common factor is the number, that is divisible by both numbers. In the given expression 3x is the greatest number that is divisible by all the terms

`3x^2 -9x\\3x(x-3)`

So,
`\mathbf{3x}` is the greatest common factor for the expression:
`3x^2 -9x`