What is the GCF of the polynomial 14x^2+8x+72?

Question

It's 11/4/19 and I need this by tomorrow. Please help ASAP! Here are the rest of the problems. I'd prefer an explanation on how to solve them but answers are fine too. Thank you in advance!

1. 14x^2+8x+72
2. 3x^4-12x^3
3. 7x+28x^2-35x^3
4. 24x^4-6x
5. 39x^5+13x^3-78x^2
6. 145x^9-17
7. 6x^6-3x^4-9x^2
8. 72x^9+15x^6+9x^3
9. 6x^4-18x^3+15x^2

 

Answer 1

 

1. 14x^2+8x+72: GCF is 2, the only common factor of the coefficients
2. 3x^4-12x^3: numerical GCF is 3, algebraic GCF is x³, so GCF=3x³
3. 7x+28x^2-35x^3: numerical GCF=7, algebraic GCF=x, GCF=7x
4. 24x^4-6x: numerical=6, algebraic=x, GCF=6x
5. 39x^5+13x^3-78x^2: numerical 13, algebraic x², GCF=13x²
6. 145x^9-17: GCF=1 (no common factor)
7. 6x^6-3x^4-9x^2: GCF=3x²
8. 72x^9+15x^6+9x^3: GCF=3x³
9. 6x^4-18x^3+15x^2: GCF=3x²