12. Resolver la ecuación: (x + 7)(x + 6) + 12 = (x + 5)(x + 9).... Question from @isabel1787

May 2023 1 9 Report

12. Resolver la ecuación: (x + 7)(x + 6) + 12 = (x + 5)(x + 9)

Respuesta:

Explicación paso a paso:

x ^2 + 13 x+ 54 = (x + 5 ) ( x + 9 )

x^ 2 +13 x + 54 = x ^2 + 14 x + 45

− x + 54 = 45

− x = − 9

x =9

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