Question

how does this problem differ from a regular synthetic division problem? No divisor is given. P(-3) for P(x)=x^4-2x^3-4x+4

Answer 1

the difference here is you just plug in x value to P(x), while in synthetic div you are dividing or using addition or subtractions of terms

Answer 2

i know how to do syn. divi but don't know how to set up this problem

Answer 3

P(x)=x^4-2x^3-4x+4
P(-3)=(-3)^4-2(-3)^3-4(-3)+4
P(-3)=151 youl arrive with the same answer on doing synthetic div

Answer 4

I did it that way and did get that answer, but now how do I do it with syn. div since I don't have a divisor

Answer 5

its -3

Answer 6

but I don't get 151 are my numbers 1 -2 -4 4?

Answer 7

try 1 -2 0 -4 4

Answer 8

I did put in ) and I got -119

Answer 9

i did put in 0 and got -119

Answer 10

it should have a coefficient of ox^2 w/c is missing there right?

Answer 11

right there is no x^2

Answer 12

try it again youl arrive at a remainder of R=151l

Answer 13

got it a dumb math mistake thanks

Answer 14

the answer is 1 -5 15 -49 R151
its now (x+3)(x^3 -5x^2 +15x -49) + R=151

Answer 15

ok good luck now..YW...have fun...:D