Question

-2a^2+(3a-1)(a+5)-4a(a-9)

Answer 1

1) Let's simplify that

-2a²+(3a-1)(a+5)-4a(a-9)​ Distribute factors

-2a² +3a²+15a-a-5 -4a²+36a Combine like terms

-3a² +50a-5