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What are the zeroes of f(x) = x2 − 2x − 3?

x = −3, 1
x = −3, −1
x = 3, 1
x = 3, −1

Sagot :

wegnerkolmp2741o

Answer:

x=3             x = -1

Step-by-step explanation:

f(x) = x^2 − 2x − 3

Set the function equal to zero

0 = x^2 − 2x − 3

Factor

What two numbers multiply to -3 and add to -2

-3 *1 = -3

-3+1 = -2

0 = (x-3)(x+1)

Using the zero product property

x-3 =0     x+1 =0

x=3             x = -1

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