1.

Solve by splitting the middle term 4s square minus 4s + 1

Answer»

Answer:

4s^2-4s+1=0

4s^2-2s-2s+1=0

2s(2s-1) -1(2s-1) =0

(2s-1) (2s-1) =0

2s-1=0

s=1/2, 1/2

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