Factoring Polynomials (7-2)

Factor using GCF:  $28c-12$  

Factor using the GCF: $\ \ 10m^2n+30mn^2+5mn$  

Factor using the difference of squares. **Always check for a GCF first**       $x^2-225$  

Factor using difference of squares **Always check for a GCF first**    $9k^4-25$  

Factor using difference of squares. **Always check for a GCF first**   $72y^4-18y^2$  

(You may need to factor this one twice)

Factor using difference of squares:  $2x^3-200x$  
Always check for a GCF first!

Factor the trinomial:  $p^2-13p+30$  
Always check for GCF first.  

Factor the trinomial:  $x^2+6x+9$  
Always check for a GCF first

Factor the trinomial:  $2v^2-22v+20$  
Always check for a GCF first

Factor the trinomial:  $5x^3-15x^2-20x$  
Always check for a GCF first.