Question

Pls answer it’s important

Answer 1

Step-by-step explanation:

1) x^2 - 8x -20 = x^2-10x+2x-20

=x(x-10)+2(x-10)

= (x-10) (x+2) => answer

in the first question the error in the 2nd line and I have solved it correctly. but I don't know about the second question sorry. I hope it will help a bit.