Factorize:-a³ - a² + a - 1 and 2a³- a²+ a - 2

a^3-1-a^2+a

(a-1) (a^2+a+1)-a(a-1)

(a-1) (a^2+a+1-a)

(a-1) (a^2+1)

2nd exp

2a^3-2-a^2+a

2(a^3-1)(a^2+1)

2(a-1)(a^2+a+1)-a(a-1)

2(a-1)(a^2+a+1-a)

2(a-1)(a^2+1)

A. 48r² - 10r + 3

Step-by-step explanation:

Solve (6r - 1) × (-8r - 3)

1. Distribute 6r and -1 (into -8r - 3):

-48r² - 18r + 8r + 3

2. Combine like terms (-18r and 8r):

-48r² - 10r + 3

So, your answer is -48r² - 10r + 3