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11-04-2020
Mathematics

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What are the zeroes of f(x) = x2 − x − 2? (4 points) a x = −2, 1 b x = 2, −1 c x = −2, −1 d x = 2, 1

Respuesta :

wegnerkolmp2741o wegnerkolmp2741o

11-04-2020

Answer:

x=2, x=-1

Step-by-step explanation:

f(x) = x^2 − x − 2

Set equal to zero

0 = x^2 − x − 2

Factor

What 2 numbers multiply to -2 and add to -1

-2*1 = -2

-2+1 =1

0=(x-2) (x+1)

Using the zero product property

x-2 =0 x+1 =0

x=2 x=-1

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