21909
Unique Id: 18586
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DIRECTIONS
for the question:
Solve the following question and mark the best possible option.
If x
3
+ 5x
2
– 4x + k is exactly divisible by (x – 2), then the value of k is:
A)
20
B)
-20
C)
-15
D)
18
E)
None of these
B
Since, x
3
+ 5x
2
– 4x + k is exactly divisible by (x – 2)
⇒ x – 2 is a factor of x
3
+ 5x
2
– 4x + k =0.
⇒2
3
+ 5 (2)
2
– 4 (2) + k = 0
⇒ k = – 20.
Hence option B.
Question include in Following Tests :
Algebra Level I - 09
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PDF - NMAT - Quantitative Skills 01
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