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If (x+2) is a common factor of the expr...

If `(x+2)` is a common factor of the expression `x^(2) + ax - 6, x^(2) + bx +2 ` and `kx^(2) - ax - (a+b)`, then `k= "_____"`.

A

2

B

3

C

1

D

-2

Text Solution

Verified by Experts

The correct Answer is:
C
Substitute `x = - 2` in the first two expression, equated to zero.
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