Find the value of 'k', if x-1 is a factor of 4x^3 + 3x^2 - 4x + k..........
Answers
Answered by
23
ans is k= -3
x = 1
then
4(1)^3+3(1)^2-4(1)+k=0
4+3-4+k=0
3+k=0
k=-3
x = 1
then
4(1)^3+3(1)^2-4(1)+k=0
4+3-4+k=0
3+k=0
k=-3
anushkasen:
Sorry to say bt i dont understood your solution.....
its ohk ra
Answered by
35
p(x)=4x^3 + 3x^2 - 4x + k
Then, p(1)=4(1)^3 + 3(1)^2 - 4(1) + k
=4 + 3 - 4 +k
=3 + k=0 or k=(-3)..........I hope this answer helps you.....Be happy....
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