Add : `4y (3y^2 + 5y – 7)` and `2 (y^3 – 4y^2 + 5)`

Simplify combining like terms: (3y^2 + 5y – 4) – (8y – y2 – 4)

Divide as directed : 20(y + 4) (y^2 + 5y + 3) -: 5(y + 4)

Classify the following polynomials as monomials, binomials, trinomials. Which polynomials do not fit in any of these three categories x + y, 1000, x + x^2 + x^3 + x^4, 7 + y + 5x, 2y – 3y^2, 2y – 3y^2 + 4y^3, 5x – 4y + 3xy, 4z – 15z^2, ab + bc + cd + da, pqr, p^2q + pq^2, 2p + 2q

Add: 3x + 5y -4,-9x + 4y and 2x-5y+7.

Add: 4x^2y, – 3xy^2, –5xy^2, 5x^2y

Subtract 5x^2 – 4y^2 + 6y – 3 from 7x^2 – 4xy + 8y^2 + 5x – 3y .

Find the values of x and y if X = Y, where X = [(x + 10, y^2 + 2y),(0, -4)] and Y = [(3x+4, 3),(0, y^2 - 5y)] .

Simplify the expressions and evaluate them as directed: 3y (2y – 7) – 3 (y – 4) – 63 for y = –2

Add: 7xy-2y and 3x-4y .

Add: 7xy + 5yz – 3zx, 4yz + 9zx – 4y , –3xz + 5x – 2xy.