Posted by Diana on .
How do I solve a problem like this:
p^3m^2/7 + p^2m^3/21  p^4m/14
Can you please help?

Math 
bobpursley,
common factor: p^2 m/7
mp^2/7 ( pm+m^2 /2 + p^2/2)
now, consider the ( ) factor out 1/2
1/2 (p^2+2pm+m^2)=1/2 (P+m)^2
so, anwer:
mp^2/14 (p+m)^2
check all that.