Question

-{-2mn + [3mn - (2m - 3mn) + 5m] }=

Answer 1

Respuesta:

1)

a+b-c-b-c+2a = a+2a+b-b-c-c = 3a - 2c.

2)

3)

3/5m²-2mn+1/10m²-1/3mn+2mn-2m² = 3/5m²+1/10m²-2m²-2mn-1/3mn+2mn = (3/5+1/10 -2)m² + (-2-1/3 +2)mn = -13/10m² -1/3mn

Explicación paso a paso: