SOLUTION: can someone check this for me please? (m^2-5mn+3n^2)(m^2+4mn-2n^2) =m^2+4mn+2n^2 m^+4mn+2n^2 =1mn+5n^2

Question 74384: can someone check this for me please?
(m^2-5mn+3n^2)(m^2+4mn-2n^2)
=m^2+4mn+2n^2
m^+4mn+2n^2
=1mn+5n^2
Answer by cathieb1225(41) (Show Source): You can put this solution on YOUR website!
(m^2-5mn+3n^2)(m^2+4mn-2n^2)
m^4+4m^3n-2m^2n^2-5m^3n^2-20m^2n^2+10mn^3+3m^2n^2+12mn^3-6n^4
Now combine like terms
m^4+4m^3n-19m^2n^2-5m^3n^2+22mn^3-6n^4
While it is hard, you must remember to multiply each term in the second set of parentheses by each one of the terms in the first set of parentheses. It is time consuming and could be confusing. As you collect the like terms, rewrite the expression with like terms next to each other to make it easier.
RELATED QUESTIONS
(m^2-5mn + 3n^2)(m^2+4mn - 2n^2) Please help me solve... (answered by elima)

Multiply using the vertical method (m^2 - 5mn + 3n^2)(m^2 + 4mn -... (answered by chitra)

Multiply, using the vertical method.... (answered by checkley75)

will some one explain this step by step for me please?... (answered by josmiceli)

Multiply using the vertical method: PLEASE HELP ME WITH THIS:0/... (answered by ankor@dixie-net.com)

What do I do? Please help me? Multiply, using the vertical method. (m^2 � 5mn +... (answered by checkley75)

Section 3.4 Just need to know if I did this right. 62.... (answered by funmath)

Multiply using the vertical method: I tried and tried and I get so confused;... (answered by checkley75)

Please help me find the answer for the following. Multiply using the vertical method (answered by checkley75)