Question

(2x-1)(2x+1) using the rule (a+b)(a-b)=a square- b square

Answer 1

Answer:

(2x-1) (2x+1) = (2x)²-(1)

= 4x²-1

using identity

(a+b) (a-b) = a²-b²

hope it will help you

Answer 2

Answer:

(a2-b2)=(a-b)(a+b)

(2x-1)(2x+1) =(2x-1)2