Question

if x-1 is a factor of x^3+3x^2-2x-k then what is k

Answer 1

Answer:

by factor theorem,

1³+3(1²)-2(1)-k=0

1+3-2-k=0

k=2

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Answer 2

${\pink{Hola!!}}$


if x-1 is a factor of

x³+3x²-2x-k

then, value of k=?

Putting x-1=0
x=1

Now

p(x)=x³+3x²-2x-k

p(1)=1³+3(1)²-2(1)-k=0

1+3-2-k=0

4-2-k=0

2-k=0

-k=-2

${\bf{\blue{k=2}}}$

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