**Weegy:** (2n + 5) - (3n + 7) + (4n - 9) = 2n + 5 - 3n - 7 + 4n - 9; = 3n - 11

**User:** Take 2y2 - 3y - 5 from y3 - 6y2 + 5y. Select the correct answer.
y3 - 2y2 + 3y + 5
y3 - 4y2 + 2y - 5
y3 - 4y2 + 2y + 5
y3 - 8y2 + 8y + 5

**Weegy:** (y^3 - 6y^2 + 5y) - (2y^2 - 3y - 5)
= (y^3 - 6y^2 + 5y) + (-2y^2 + 3y + 5)
= y^3 - 8y^2 + 8y + 5

**User:** Identify the polynomial.
x3 - y3 + z
monomial
binomial
trinomial

**Weegy:** x^3 - y^3 + z is a trinomial.

(More)