Question

Ayudaaaaaaaaaaaaa plis :(​

Answer 1

Respuesta:

1. 6m^2+3mn-2nm-2n^2

2. (x+y) (x-y)^2= (x+y) (x-y)(x-y)= x^2-y^2 (x-y)

3. 4a^2-6^2=4a^2-36

4. 7x^3-6x^2y-14x^2 y^2 +12xy^3