Respuesta :

Answer:

3+3bx^2y^2z+y-z

Step-by-step explanation:

each variables exponent is 1 so after you show the exponents you calculate the products, add the numbers, then reorder the terms.

Answer:

- 3xyz - z³ + y³ + x\-x - y + z

Step-by-step explanation:

Factor the numerator and denominator and cancel the common factors.