resendize592 resendize592
  • 24-08-2021
  • Mathematics
contestada

If f(x) = 3x +5/x what is f(a+2)?

Respuesta :

sanaka sanaka
  • 24-08-2021
I was a little confused so I solve it two different ways and got different answers so pls read through this carefully

Substitute a+2 instead of x
That would look something like: 3(a+2)+5/a+2
Now simplify:
3a+6+5/a+2
3a+11/a+2

3(a+2) +5/(a+2)
3a+6 + 5/(a+2)
LCM: (3a(a+2) + 6(a+2) +5)/a+2
So your answer will be (3a^2 + 12a + 17)/(a+2)

I hope this helps :)



Answer Link

Otras preguntas

if a wave has a frequency of 8hz it has a period of
A railway train 50 m long passes over a bridge 250 m long at the rate of 12 km/h.How long will it take completely pass over the bridge?
All of the following added to the growing tension between the North and the South EXCEPT A) Uncle Tom s Cabin B) Plessy v. Ferguson C) raid on Harper s Ferry D)
4m-5t=-22 5m+6t=-3 Solve by Elimination
A candy machine is filled with candy. The weight of the candy can differ from the desired 84 ounce weight by no more than 0.5 ounces. Solve the absolute value e
Can you answer these? I don't understand this part either. Thanks
The diagram below shows the graph of which inequality?
for what value of x is the rational expression below equal to zero 20+2x/5-x
A scientist suggests keeping indoor air relatively clean as follows: provide 2 or 3 pots of flowers for every 100 square feet of floor space under a ceiling of
what is the equation of a parabola whose vertex is (-4,7) and whose graph is 1/2 as wide as y=x^2