Question

can someone please help me im really behind and I need help with some answers

Answer 1

What is one of your questions?

Answer 2

which is equivalent to the following expression? (3m^2+2mn-n^2)+(m^2+4mn-n^2)
A 4m^2+6mn-2n^2
B 4m^4-6mn-2n^4
C 3m^2-6mn+2n^2
D 4m^2+6mn+2n^2

Answer 3

you remove parenthesis and combine like terms

Answer 4

(3m^2+2mn-n^2)+(m^2+4mn-n^2)

3m^2+2mn-n^2+m^2+4mn-n^2

(3m^2+m^2)+(2mn+4mn)+(-n^2-n^2)

(4m^2)+(6mn)+(-2n^2)

4m^2 + 6mn - 2n^2

Answer 5

thank you so much

Answer 6

you're welcome