Question

Use synthetic division to find P(3) for: P(x)=3x^4-5x^2+6x-5

Answer 1

@ganeshie8 do you know this? :/

Answer 2

uhh.. synthetic division

Answer 3

yes im on my final for algebra II & i have no idea how to do this..

Answer 4

do u need to show work or u just need to tick the right option ?

Answer 5

the right option

Answer 6

then we can cheat

Answer 7

P(x)=3x^4-5x^2+6x-5

P(3) = ?

Answer 8

just plugin x = 3 in that polynomial

Answer 9

it doesnt matter how u get the answer, as long as you get the same answer. both methods work and give the same answer.

Answer 10

that sounds good to me ;o lol im almost graduated!

Answer 11

wait what do you mean plug in x=3? im sorry

Answer 12

P(x)=3x^4-5x^2+6x-5

P(3) = 3(3)^4 - 5(3)^2 + 6(3) - 5
= ?

Answer 13

lemme see

Answer 14

okie

Answer 15

i got 211

Answer 16

correct !

Answer 17

and you can use wolfram to calculate things :-

Answer 18

http://www.wolframalpha.com/input/?i=+3%283%29%5E4+-+5%283%29%5E2+%2B+6%283%29+-+5

Answer 19

yay thank u again rex !!

Answer 20

welcome thanks for the cute testimonial :D

Answer 21

no problem, u deserve it ^.^

Answer 22

ahh ty :)