Question

$4 {s}^{2} - 4s + 1$
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Answer 1

Answer:

4s²-2s-2s+1

2s(2s-1)-1(2s-1)

(2s-1)(2s-1)

Answer 2

Answer:

4s²-4s+1

4s²-2s-2s+1

2s(2s-1)-(2s-1)

(2s-1)(2s-1)

s=1/2,1/2