Question

Adding Polynomials .
( 7y^2z + 9 + yz^2 ) + y^2z - 2yz^2 )

Answer 1

\(\Large \color{purple}{(7 + 1)y^{2}z + 9 + (1 -2)yz^{2} }\)
Solve it now ;)

Answer 2

I did it like that , I just didn't know if I was doing the right thing when I got to the 1 - 2 .

Answer 3

\(\Large \color{purple}{ (1 - 2) =-(2 - 1) = -1 }\)
:D