(х+7)²-(х-3)(х+3)=0
х²+14х+49-х²+9=0
14х+58=0
х=-58/14
х = –4 1/7
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(х+7)²-(х-3)(х+3)=0
х²+14х+49-х²+9=0
14х+58=0
х=-58/14
х = –4 1/7