(х-х₁)(х-х₂)=0
(х- (4 -3✓2))(х- (4 + 3✓2))=0
(х- 4 +3✓2)(х- 4- 3✓2)=0
(х- 4)²-(3√2)²=0
х²-8х+16-9*2=0
х²-8х-2=0
(х-х₁)(х-х₂)=0
(х- (4 -3✓2))(х- (4 + 3✓2))=0
(х- 4 +3✓2)(х- 4- 3✓2)=0
(х- 4)²-(3√2)²=0
х²-8х+16-9*2=0
х²-8х-2=0