jaikulkarni jaikulkarni
  • 26-04-2017
  • Mathematics
contestada

State how many imaginary and real zeros the function has. f(x) = x3 + 5x2 + x + 5

Respuesta :

isentrixx
isentrixx isentrixx
  • 26-04-2017
1 imaginary & 2 reals

Hope I helped! ( Smiles )
Answer Link
apologiabiology
apologiabiology apologiabiology
  • 26-04-2017
we factor by grouping

f(x)=(x³+x)+(5x^2+5)
f(x)=x(x²+1)+5(x²+1)
undistribute x²+1
f(x)=(x+5)(x²+1)
set each to zero
0=x+5
x=-5

0=x²+1
-1=x²
i=x

1 real root and 1 imaginary root
Answer Link

Otras preguntas

How many elements are in3CaSO4A)3B)4 C)18D)6
Identify a tipe of variation in the polar bears
A person drove 30 miles per hour on a trip. If he had driven 40 miles per hour, he would have arrived 4 hours earlier. What was the distance the person drove?​
Read these sentences from lines 6 and 7 of the story. "Get up at once, man, and I will do my best for you. I can see that if you do not kill worry, worry will k
8. What are three benefits of using white space? PLEASEEEEE HELLLLPPPPPPP!!!!
discussion on types of droughts​
help ASAP its due on monday, thanks.GIVING BRAINLIESTlet a=(-4) b=73 c=(-17)23(a) =c(-b) =c/19 =
V. Complete each sentence with the suitable form of the word provided. (Ipt) 1. Don't drink that water. It's.... (contamination) e 2. Three hundred people were
How did the Enlightenment highlight the abuse of power by King Louis XVI?
I need help please thanks