if x+1 is a factor of ax³+x²–2x +4a –9 ,find the value of a
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Answered by
26
the value of a is -10...not 10
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sahiltony:
you made a mistake
U r wron the answer is 2
Answered by
29
according to the remainder theorum
zero of the polynomial ax^3+x^2-3x+4a-9 is
x+1= 0
x=-1
a×-1+1+2+4a-9=0
-a+3+4a-9=0
-6+3a=0
a=2
zero of the polynomial ax^3+x^2-3x+4a-9 is
x+1= 0
x=-1
a×-1+1+2+4a-9=0
-a+3+4a-9=0
-6+3a=0
a=2
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