manda912 manda912
  • 13-01-2019
  • Mathematics
contestada

What is the domain for -(2(x-85))/(x+11)(x-5)

Respuesta :

gmany
gmany gmany
  • 18-01-2019

The denominator must be different than zero.

Therefore

[tex](x + 11)(x-5)\neq0\iff x+11\neq0\ \wedge\ x-5\neq0\\\\x\neq-11\ wedge\ x\neq5[/tex]

The domain is the set of all real numbers except -11 and 5

[tex]D=\mathbb{R}-\{-11,\ 5\}[/tex]

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