Question

Remove the largest possible common factor
28x^4+14x^2+21x

Answer 1

Find greatest common factor of 28, 14, 21
28=2*14=2*2*7
14 = 2*7
21 = 3*7

Answer 2

and?

Answer 3

once you find the largest factor you pull it out and divide into each of the three terms
we know 7 is the largest common factor
->7(28/7 x^4 + 14/7x^2 +21/7x)

Answer 4

now look at how many x's you can pull out
find the x with smallest exponent

Answer 5

and?

Answer 6

and what?
how many x's can we factor out?

Answer 7

7

Answer 8

whats the answer?

Answer 9

im here to help
you need to figure it out