Respuesta:
x = -1, x= -2
Explicación paso a paso:
(x + 9) ( x + 1) = 7 (x + 1)
(x + 9) ( x + 1) - 7 (x + 1) = 0
factor común (x + 1)
( x + 1) (x + 9 - 7) = 0
( x + 1) (x + 2) = 0
Entonces
x + 1 = 0 entonces x = -1
x + 2 = 0 entonces x = -2
Rpta.- x = -1; y x= -2
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Verified answer
Respuesta:
x = -1, x= -2
Explicación paso a paso:
(x + 9) ( x + 1) = 7 (x + 1)
(x + 9) ( x + 1) - 7 (x + 1) = 0
factor común (x + 1)
( x + 1) (x + 9 - 7) = 0
( x + 1) (x + 2) = 0
Entonces
x + 1 = 0 entonces x = -1
x + 2 = 0 entonces x = -2
Rpta.- x = -1; y x= -2