❓❗❓❗PLEASE HELP ASAP❓❗❓❗
(3z^3 – 4z + 7z^2) + (8z^2 - 6z - 5)
Simplify (8x^3 - 5x+1)-(x^2+4). Show your work
Simplify the product 4x(5x^2+ 3x +7).
Simplify and write in standard form
