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Long Division Polynomials Question (1 Viewer)

Thread starter AirbusA380
Start date Apr 27, 2014

A

AirbusA380

New Member

#1

11 Find the value of a so that the remainder will be 4791 if 5x4 − 12x3 + 5x2 − ax + 1 is divided by x + 5. I cant seem to work it out, helpppp?

W

wgy182

Member

#2

Sub in -5 for x and make the equation equal 4791. Then solve for a.
I think a=8

Last edited: Apr 27, 2014

A

AirbusA380

New Member

#3

wgy182 said:
Sub in -5 for x and make the equation equal 4791. Then solve for a.
I think a=8

Yep, 8. Thanks so much mate. im not sure why i didnt think of that. Its easyyy.

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