(2y-1)²+3=6y

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(2y-1)²+3=6y(2y-1)²+3=6y(2y-1)²+3=6y(2y-1)²+3=6y4y^2+1-4y+3-6y=04y^2+4-10y=02y^2

(2y-1)²+3=6y
(2y-1)²+3=6y

(2y-1)²+3=6y
(2y-1)²+3=6y
4y^2+1-4y+3-6y=0
4y^2+4-10y=0
2y^2+2-5y=0
(y-2)(2y-1)=0
y=2或者y=1/2