Question

Please can someone help me solve this i will appreciate it!
Evaluate the function below for x=2 F(x)=x^4+6x^3+3
A.55
B.47
C.59
D.67

Answer 1

put 2 in place of x everywhere...

Answer 2

@lovelyyvaal ?

Answer 3

so F(2)=?

Answer 4

\[F(2)=2^{2}+6\times2^{3}+3\]

I think that's how it's supposed to look

Answer 5

I don't know about "F(2)" though

I know it's called "Function Notion" or something like that ,but unsure

Answer 6

yea thats how i set it up @LoveIt

Answer 7

@priyar

Answer 8

@zepdrix

Answer 9

its 2^4 (first term)

Answer 10

coz there is x^4.. the rest of it is perfect!

Answer 11

then just evaluate..you will get the answer..1

Answer 12

summary: if y = x^4, and x = 2, then y = (2)^4 = 2 * 2 * 2 * 2 = ?

Answer 13

@mathmale 16?

Answer 14

\[F(2) = 2^{4} + 6(2^{3}) +3\]
\[F(2) = 16 + 48 + 3\]
\[F(2) = 67\]

Answer 15

Yes, 2^4=16.

Answer 16

Really? How's your synthetic division? MUCH easier.

Answer 17

i have so far 4+6(2)^3+3 did i set it up right?

Answer 18

Even more "Really?!" Why are we doing your quiz for you?

Close it and do your own examination, please.

Answer 19

@tkhunny just wanted for someone to help me out step by step so i can write down how it was solved and do it myself when i get another question thats how i learn but sorry this offends you !

Answer 20

"Evaluate the function below for x=2 F(x)=x^4+6x^3+3"

Method 1:
Replace each incidence of "x" in the function F(x) with (2): F(2)=(2)^4+6(2)^3 + 3.
Can you evaluate that? If not, about what are you uncertain regarding what to do?

Method 2:
Use synthetic division (provided that you already have experience with it):

F(x)=x^4+6x^3+3 becomes \[F(x)=1x^4+6x^3+0x^2+0x +3,\]

Answer 21

so the coefficients of F(x) are, in order, 1 6 0 0 3.
Use the divisor 2.

If you've already learned synth. div., great. If not, and you have time, someone else or I could introduce the procedure. You'd want to divide by 2:

2 / 1 6 0 0 3

Otherwise Method I will work all right. Review this entire conversation, looking for the value of 2^4. Next, calculate 2^3 and multiply the result by the coefficient 6.

Form your final result by adding up the values of 2^4, 6(2)^3 and the constant, 3.

Questions?

Answer 22

What part about this being a graded quiz are you not understanding? You should pay more to get people to help you cheat. We do not want to be in that business.