(3-2根号2)x²+2(根号2-1)x+1=0求解
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(3-2根号2)x²+2(根号2-1)x+1=0求解
(3-2根号2)x²+2(根号2-1)x+1=0求解
(3-2根号2)x²+2(根号2-1)x+1=0求解
(3-2根号2)x²+2(根号2-1)x+1=0
[(根号2-1)x]²+2(根号2-1)x+1=0
[(根号2-1)x+1]²=0
(根号2-1)x=-1
x=-1/(根号2-1)
即
x=-(根号2 +1)