Junzia
Junzia Junzia
  • 13-07-2016
  • Mathematics
contestada

if f(x)=x^2-81 and g(x)=(x-9)^-1(x 9), find g(x) * f(x)

Respuesta :

caylus
caylus caylus
  • 16-07-2016
Hello,

if x≠9 then

[tex]f(x)=x^2-81\\\\ g(x)= \frac{x+9}{x-9} \\\\ g(x)*f(x)= \dfrac{(x-9)(x+9)(x+9)}{x-9} =(x+9)^2=x^2+18x+81[/tex]
Answer Link
19cwilson1 19cwilson1
  • 28-06-2018
The answer choices are
A) (x+9)^2
B) (x-9)^2
C) 2(x+9)
D) (x+9)(x-9) So the answer would be A
Answer Link

Otras preguntas

Why was Charles Darwin considered to be a revolutionary?
Which of the following prefixes is best for measuring large quantities like the mass of a person? milli kilo deci deca
what is 33 1/2 of 24 and 37 1/2 of 80 and finally, what is 66 2/3 of 45
Why was Charles Darwin considered to be a revolutionary?
What does ayudando mean?
facts about the Virginia plan
Why was Charles Darwin considered to be a revolutionary?
List four methods that can be used to separate mixtures and give an example of each method?
answer the following math question: which place value changed in 6652+600+1000=
Which of the following prefixes is best for measuring large quantities like the mass of a person? milli kilo deci deca