Question

resta el segundo polinomio del primero ( 6x - 6y + 6z ) (-3x + 10y - z )

Answer 1

$(6x-6y+6z)-(-3x+10y-z)= \\ \\ 6x-6y+6z+3x-10y+z= \\ \\ (6x+3x)+(-6y-10y)+(6z+z)= \\ \\ (9x)+(-16y)+(7z)= \\ \\ \boxed{9x-16y+7z}$