polynomial question?
(5m^3 + 3mn^2) + (-7m^2n+mn^2-n3) - (mn^2 + 2m^3)?

Question

polynomial question?
(5m^3 + 3mn^2) + (-7m^2n+mn^2-n3) - (mn^2 + 2m^3)?

anonymous · Answer

whoa that lloks hard

anonymous · Answer

haha polynomials typically aren't *that* hard but I'm stuck on this one

anonymous · Answer

$$(5m^3 + 3mn^2) + (-7m^2n+mn^2-n^3) - (mn^2 + 2m^3)$$distribute the minus sign and get 
$$5m^3 + 3mn^2 -7m^2n+mn^2-n^3 - mn^2 - 2m^3$$then we have to identify the like terms and combine them

anonymous · Answer

like terms means same variables and same expontents 
$$5m^3-2m^3+3mn^2-mn^2-7m^2n+mn^2-n^3$$ putting the like terms next to each other, then combine

anonymous · Answer

$$3m^3+2mn^2-6m^2n-n^3$$ if my algebra is right, and that would be the final answer

anonymous · Answer

Thank you SO much!

anonymous · Answer

yw, but please check my answer because i just typed it without using pencil and paper so there could be a mistake

anonymous · Answer

okay no probs.