Question

Pllss answer this question faaastttt

Answer 1

Answer:

I don't know but thanks for points

Step-by-step explanation:

please don't make me brain list

Answer 2

Answer:

-a² - 13b² +( 4+b)c²

Step-by-step explanation:

2a² - 8b² + 4c² - ( 3a² + 5b² - bc²)

2a² - 8b² + 4c² - 3a² - 5b² + bc²

-a² - 13b² +( 4+b)c²