Решите неравенство:
1) (х+2)(х-6)-(х-7)(х+7)<30-3х;
2) (3х+2)^2-(4-3х)^2 <или равно14+37х;
Решите уравнение:
1) (5-х)^2-(3х-2)*(2х+1)=х*(2-5х);
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