Respuesta :

The equivalent expression would be

-2m²-mn-2m+5n+4n².

We use the distributive property to multiply each piece of the expression first:

-2m*m+(-2m)*n-(-2m)*4+5(-2m)+5(2n)+n(m)+n(4n)-n(5)
= -2m²-2mn+8m-10m+10n+mn+4n²-5n

Combining like terms gives us:
-2m²-mn-2m+5n+4n²
the answer is -2m^2+4n^2-mn-2m+5