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Posted by **Diana** on Monday, May 2, 2011 at 11:29am.

p^3m^2/7 + p^2m^3/21 - p^4m/14

Can you please help?

- Math -
**bobpursley**, Monday, May 2, 2011 at 11:57amcommon 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.

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