Question

is 6x a common factor of f(x)=24x^2+24

Answer 1

6 is a factor
but there is no x in the second term.

Answer 2

is 6x a common factor of f(x)=24x^2+24x

Answer 3

6x is NOT a factor of 24x^2+24 for the reasons @sshayer described

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6x is a factor of 24x^2+24x because

a) 6x is a factor of 24x^2
b) 6x is a factor of 24x

Answer 4

we can pull out a 6x factor from 24x^2

Answer 5

and from 24x as well