Respuesta :

masbrosur

Answer:

x = -6 and x = 7

Step-by-step explanation:

x² - x - 42 = 0

find two number which

a + b = -1

a*b = -42

a = -7

b = 6

x² - x - 42 = 0

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

x-7 = 0

x = 7

x +6 = 0

x = -6

zibahkeshiro

Answer:-6 or 7

Step-by-step explanation:

Ver imagen zibahkeshiro

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