Math, asked by simuna, 1 year ago

Q13 please do it my friends

Attachments:

AjayJoseph: I cant see the 'to find' part
AjayJoseph: in Q12

Answers

Answered by AjayJoseph
1
13)Case 1 
   (x-2)is a factor
 which means p(2)=0
 therefore   8+4a+2b+6=0
                   
Case2
 (x-3)leaves remainder 3
which means q(3)=3
therefore  27+9a+3b+6=3

solving them I got
a=-3
b=-1

AjayJoseph: Sorry as I couldnt do the Q-12
AjayJoseph: for solving I used elimination method
simuna: how you have solved the equation in Q13
AjayJoseph: 13)Case 1
(x-2)is a factor
which means p(2)=0
therefore 8+4a+2b+6=0

Case2
(x-3)leaves remainder 3
which means q(3)=3
therefore 27+9a+3b+6=3

solving them I got
a=-3
b=-1
AjayJoseph: 27+9a+3b+6=3
AjayJoseph: which means 9+3a+b+2=1 8+4a+2b+6=0 means 4+2a+b+3=0
AjayJoseph: 9-4 +3a-2a +b-b +2-3 = 1-0 which means 5+a-1=1 which means a= -3 by substituting this in any one of the equations you will get b= -1
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