who will give the answer i will follow them.
step by step explaination please...
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Step-by-step explanation:
=>(2a-1/2) (2a-1/2)
=> (2a-1/2)^2
using formula (a-b)^2=a^2+b^2-2ab
=> (2a)^2 + (1/2)^2 - 2 × 2a × 1/2
=> 4a^2 + 1/4 - 2a ans
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