(x-√2)²+2(x-√2)=0
(x-√2)(x-√2+2)=0
x=√2 x=√2-2
(X-根号2)²-2(根号2-X)=0
(x-√2)²+2(x-√2)=0
(x-√2)(x-√2+2)=0
x-√2=0 x-√2+2=0
∴X1=√2
X2=2-√2
由(x-√2)²-2(√2-x)=0
(x-√2)²+2(x-√2)=0
(x-√2)(x-√2+2)=0
∴x1=√2, x2=√2-2.
﹙x-√2﹚²-2﹙√2-x﹚=0
﹙x-√2﹚²+2﹙x-√2﹚=0
﹙x-√2﹚﹙x-√2+2﹚=0
x1=√2, x2=√2-2