(8х-1)(8х+1)=4х(16х+1)-2
64х²+8х-8х-1=64х²+4х-2
64х²-1=64х²+4х-2
64х²-64х²-1+2=4х
-1+2=4х
1=4х
х=1:4
х=¼=0,25
(8х-1)(8х+1)=4х(16х+1)-2
64х²+8х-8х-1=64х²+4х-2
64х²-1=64х²+4х-2
64х²-64х²-1+2=4х
-1+2=4х
1=4х
х=1:4
х=¼=0,25