Question

What should be added to 9x²+7xz+8 to get 20x²-8xz-11​

Answer 1

Answer:

11x^2 - 15xz - 19

Step-by-step explanation:

9x^2 + (11x^2) = 20x^2

7xz - (15xz) = -8xz

8 - (19) = -11

so the added part is

(11x^2 - 15xz - 19)

Answer 2

Thik Hai Friends Bangao

Okay Thanks ....