Respuesta :

Answer:

x = -7, x = 6

Step-by-step explanation:

x² + x - 30 = 12

x² + x - 42 = 0

- 42 = 7*(-6)

7+(-6) = 1

(x+7)(x-6) = 0

x+7 =0, x = -7

x - 6 = 0, x = 6

Answer:

It's A :D

Step-by-step explanation:

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