(х-3)²-(х+1)²=12 (3х-2)²+1(1-3х)(3х+2)=36х(х-2)(х-3)=8+х(х-2,5)²(6х-1)²-(5х+2)...

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(х-3)²-(х+1)²=12 (3х-2)²+1(1-3х)(3х+2)=36
х(х-2)(х-3)=8+х(х-2,5)²
(6х-1)²-(5х+2)(6х+5)=6+(х-1)²-37х
(2х-1)(2х+1)=2(х-3)²+х(2х-3)