apply identity (a) (2x+1)(2x-1)
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Answer:
4x²-1
Step-by-step explanation:
(2x+1)(2x-1)
we will apply the identity: (a+b)(a-b)=a²-b²
hence,
(2x+1)(2x-1)
=(2x)²-(1)²
=4x²-1
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