please solve question number 9th it is very important sum please please help me
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Answer:
a= -2 and b=-3
Step-by-step explanation:
f(x)=x³+ax²+bx+6
f(2)=2³+a(2)²+b(2)+6=0 [As (x-2) is the factor of f(x)]
=8+4a+2b+6=0
=2a+b= -7 --> (1)
f(3)=3 [as (x-3) leaves a remainder 3]
f(3)=3³+a(3)²+b(3)+3=3
27+9a+3b=0
3a+b=-9 -->(2)
from (1) and (2)
a= -2 and b=-3
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