Question

Use the greatest common factor when factoring the expressions:

1) 20x^2+5x^3
2)9x+6
3)-2x^7+8x^8
4)20x^6-12x^4

Answer 1

1. 5x^2
2. 3
3. 2x^7
4. 4x^4

Answer 2

those are the GCF for each

Answer 3

The first one is 5x^2(4+x)
Try the others now that you have the GCF for them