ash34321
ash34321 ash34321
  • 24-11-2018
  • Mathematics
contestada

What’s the domain of f(x)= x-4/x^2+5x-36

Respuesta :

gmany
gmany gmany
  • 24-11-2018

[tex]f(x)=\dfrac{x-4}{x^2+5x-36}\\\\The\ domain:\\\\x^2+5x-36\neq0\\\\x^2+9x-4x-36\neq0\\\\x(x+9)-4(x+9)\neq0\\\\(x+9)(x-4)\neq0\iff x+9\neq0\ \wedge\ x-4\neq0\\\\x\neq-9\ \wedge\ x\neq4\\\\Answer:\ x\in\mathbb{R}-\{-9,\ 4\}\to x\in(-\infty,\ -9)\ \cup\ (-9,\ 4)\ \cup\ (4,\ \infty)\\\\\to x\neq-9\ \wedge\ x\neq4[/tex]

Answer Link

Otras preguntas

Why do people protest fracking? Check all that apply. It can pollute the air. It can decrease oil production. It can pollute wells. It can increase climate c
how do i do this involving point slope
Can you help me please, Thanks! I'll give brainlyest!
Why Did Unions use sit down strikes
BRAINLIEST AND POINTS!!! PLEASE EXPLAIN
Who do you guys need to sub to? A.Pewdiepie B.Mr.Beast6000 C.T-Series D.None of the above
If there are 3 basketballs for every 7 students at Wilder, then how many students are there if the store room has 49 basketballs? There are 113 kids at WMS
98 points and brinliest to the person that can write a 5 paragraph essay on this topic
A little help please... Identify the impact of location on climate near the North Pole or South Pole A .Very Hot B. very cold climate C. very moderate c
Read the scenario below. Mom: Amber, will you please take the trash out? (15 minutes later) Mom: Amber, I asked you to take the trash out 15 minutes ago! Amber