1.

Find the value of b, if x+b is a factor of x³+bx²-2x+b+4​

Answer»

ANSWER:

let's start with factor THEOREM,

where,

x+b=0

x=-b

-b³+b×b²+2b-b+4

-b-b³+b+4

-b+b-b³+4=-b³+4

now,

-b³+4=0

-b³=-4

-4/-b³

=> 4/b³


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