Question

pls help me best wil be brainliest​

Answer 1

Answer:

Step-by-step explanation:

Answer 2

Answer:

Step-by-step explanation:

x^2-(a+b)x+(a-1)(b+1)=0

one factor is x-a+1

x-a+1)x^2-ax-bx+ab+a-b-1(x-b-1

        x^2-ax+x

------------------------------------

-bx-x+ab+a

-bx+ab-b

----------------------------------

      -x+a+b-b-1

       -x+a-1

------------------------------

0 remainder

the other factor is x-b-1