Question

(a+1)² - (b-1)² do factorize​

Answer 1

Step-by-step explanation:

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

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

=a^2+2a+1-b^2+2b-1

=a^2-b^2+2a+2b-1

=(a+b)(a-b)+2(a+b)-1