Question

find the value of
£of (2r+1) (2r-1)​

Answer 1

Answer:

I am 3 2 the, and the cursed

Answer 2

Answer:

(2r+1)(2r-1)

(2r)^2-1^2. {(a+b)(a-b)=a^2-b^2}

Step-by-step explanation:

(2r+1)(2r-1)

2r(2r-1)+1(2r-1)

4r^2-2r+2r-1

(2r)^2-1^2