(1)2x²-√ 2x-1=0(2)2/3x²-1/6x-1/2=0(1)2x²-√ 2x-1=02)2/3x²-1/6x-1/2=0

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(1)2x²-√2x-1=0(2)2/3x²-1/6x-1/2=0(1)2x²-√2x-1=02)2/3x²-1/6x-1/2=0(1)2x²-√2x

(1)2x²-√ 2x-1=0(2)2/3x²-1/6x-1/2=0(1)2x²-√ 2x-1=02)2/3x²-1/6x-1/2=0
(1)2x²-√ 2x-1=0(2)2/3x²-1/6x-1/2=0
(1)2x²-√ 2x-1=0
2)2/3x²-1/6x-1/2=0

(1)2x²-√ 2x-1=0(2)2/3x²-1/6x-1/2=0(1)2x²-√ 2x-1=02)2/3x²-1/6x-1/2=0
(1)2x²-√ 2x-1=0
x²-√2x/2=1/2
(x-√2/4)²=1/2+1/8
(x-√2/4)²=5/8
x-√2/4=±√10/4
x=(√2±√10)/4
2)2/3x²-1/6x-1/2=0
两边同乘以6得:
4x²-x-3=0
(4x+3)(x-1)=0
x=-3/4或x=1