Question

please answer both.......... it's urgent ​

Answer 1

Step-by-step explanation:

8)Given expression is ab-2b+a²-2a

=>b(a-2)+a(a-2)

ab-2b+a²-2a

=>(a-2)(b+a)

=>(a-2)(a+b)

ab-2b+a²-2a=(a-2)(a+b)

9)Given expression is a³-a²+a-1

=>(a³-a²)+(a-1)

=>a²(a-1)+1(a-1)

=>(a-1)(a²+1)

a³-a²+a-1=(a-1)(a²+1)

10)Given expression is a³-a²-ab+a+b-1

a³-a²-ab+a+b-1

=>(a³-a²)+(a-ab)+(b-1)

=>a²(a-1)+a(1-b)+(b-1)

=>a²(a-1)-a(b-1)+(b-1)

=>a²(a-1)+(b-1)(1-a)

=>a²(a-1)-(b-1)(a-1)

=>(a-1)(a²-(b-1))

=>(a-1)(a²-b+1)

a³-a²-ab+a+b-1=(a-1)(a²-b+1)

Answer 2

HOPE IT HELPS UUUUUUUUU.................

IF IT SATISFIES U, GIVE A THANK...