In each case, state True if the trinomial is a perfect square else state False.
4x2+4x+1
A
True
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B
False
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Solution
The correct option is A True 4x2+4x+1=(2x)2+2×(2x)+1 Applying the formula a2+b2+2ab=(a+b)2 4x2+4x+1=(2x)2+2×(2x)+1=(2x+1)2 Hence, the given trinomial is a perfect square.