Решите уравнение:
а) √х²-3х+1 = х+2
б) √х²+5х+2 = х+4
под корнем √х²-3х+1 и √х²+5х+2
а) √х²-3х+1 = х+2
б) √х²+5х+2 = х+4
под корнем √х²-3х+1 и √х²+5х+2
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Verified answer
А) (√(х²-3х+1))² = (х+2)²х²-3х+1=х²+4х+4
-7х=3
х = - 3/7
б) (√(х²+5х+2))² = (х+4)²
х²+5х+2=х²+8х+16
-3х=14
х= - 14/3 = - 4 2/3