Question

(4b-1/2)²

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Answer 1

(4b-1/2)2
16b^2-1/4
16b^2 - .25

Answer 2

Answer:

$( {4b - \frac{1}{2} })^{2} \\ ({4b})^{2} + ( { \frac{1}{2} })^{2} - 2(4b)( \frac{1}{2} ) \\ 16 {b}^{2} + \frac{1}{4} - 4b$

$identity \: used \: is \: {(x - y)}^{2} = {x}^{2} + {y}^{2} - 2xy$

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