Question

(11z2+4z-6)+(4z-7+12z2)+(-8+13z2+4z)​

Answer 1

huifytyjctrxrtfygvjhk

Explanation:

yeah he is right

Answer 2

Answer:
`36z^2+12z-21`

Explanation:

You need to remember the multiplication of signs:

`(+)(+)=+\\(+)(-)=-\\(-)(-)=+`

In order to simplify the given the expression:

`(11z^2+4z-6)+(4z-7+12z^2)+(-8+13z^2+4z)`

You must distribute signs:

`=11z^2+4z-6+4z-7+12z^2-8+13z^2+4z`

And finally, you must add the like terms:

`=36z^2+12z-21`