1)х(х+3)=10, х=2- корень
проверка:
2(2+3)=10
2*5=10
10=10
2)х(х-1)=42, х=7-корень
7(7-1)=42
7*6=42
42=42
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Verified answer
1)х(х+3)=10, х=2- корень
проверка:
2(2+3)=10
2*5=10
10=10
2)х(х-1)=42, х=7-корень
проверка:
7(7-1)=42
7*6=42
42=42
Verified answer
2(2+3)=10 х=27(7-1) = 42 х=7