(1,0,-1)-(х,-1,2)=((1-х;1;-3)
(1-х)²+1+9=26
(1-х)²=16
1-х=4⇒х=-3
1-х=-4⇒х=5
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(1,0,-1)-(х,-1,2)=((1-х;1;-3)
(1-х)²+1+9=26
(1-х)²=16
1-х=4⇒х=-3
1-х=-4⇒х=5