Question

-(x² + y² - 2) – [3x² + (2 y ² - 2) – x² - y² – z]​

Answer 1

ANSWER

-4x²-2y² +4 +z

Step-by-step explanation:

-(x²+y²-2) - [3x²+(2y²-2) - x²-y²-z ]

-x²-y²+2 - [ 3x²+2y²-2-x²-y²-z ]

-x²-y²+2 -3x²-2y²+2+x²+y²+z

( -x²- 3x² + x²) + ( -y²- 2y² + y²) + (2+2) +z

-4x² -2y² +4 +z

Answer 2

Answer:

hope it helps you!!!!!!