MahmoudSheikh1820 MahmoudSheikh1820
  • 02-09-2022
  • Mathematics
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Im very confused help

Im very confused help class=

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abidemiokin
abidemiokin abidemiokin
  • 07-09-2022

The values of x not in the domain of g are -4 and 1

Domain of a function

The domain of a function is the value of the independent variable for which a function exist

Given the function below;

g(x) = x²+13x+42/x²+3x-4

The function does not exist if the denominator is zero.

x²+3x-4 = 0

Factorize

x²+4x-x-4 = 0

x(x+4)-1(x+4) = 0

x = -4 and 1

Hence the values of x not in the domain of g are -4 and 1

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