(3х-5)^2-5(5-6х)=0
9х^2-30х+25-25+30х=0
9х^2=0
х^2=0
х=0
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(3х-5)^2-5(5-6х)=0
9х^2-30х+25-25+30х=0
9х^2=0
х^2=0
х=0