[tex](x - 2.5)(x + 3.7) = 0 \\ x_{1} = 2.5 \\ x_{2} = - 3.7 \\ \\ - 7x = 56 \\ x = 56 \div ( - 7) \\ x = - 8[/tex]
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[tex](x - 2.5)(x + 3.7) = 0 \\ x_{1} = 2.5 \\ x_{2} = - 3.7 \\ \\ - 7x = 56 \\ x = 56 \div ( - 7) \\ x = - 8[/tex]