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If 2x+7 is a factor of \(6x^3+19x^2+cx+35\), find c.

 May 12, 2019
 #1
avatar+101769 
+2

If 2x+7 then 2(x+7/2) are factors 

and thes means that

 

f(-7/2)=0

 

Do the substitution and find the answer for yourself.

 

 

Please no one do more of the working.

I anyone, including Lightning has a question, they will ask.

Thanks.

 May 12, 2019
 #2
avatar+1193 
0

Solved it! Plugged it into Wolframalpha and got 3!

Lightning  May 12, 2019
edited by Lightning  May 12, 2019
 #3
avatar+101769 
+1

You didn't solve anything, Wolfram|alpha did.

Melody  May 12, 2019
 #4
avatar+101420 
+2

LOL!!!!!

 

Lightning solved it by NOT solving it......!!!!!

 

Which brings to mind the old paradox...."If every man in the village who is not the barber shaves himself.....who shaves the barber ? "

 

 

cool cool cool

CPhill  May 12, 2019
 #5
avatar+101769 
0

Anyone or noone could shave the barber. 

The statement says notihng in relation to the barber himself.

Melody  May 13, 2019

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