Q: If (x + k ) is the common factor of x2 + ax + b and x2 + cx + d , t – McqOptions

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1.	Q: If (x + k ) is the common factor of x2 + ax + b and x2 + cx + d , then what is k equal to ?
A.	$$ {(d-b)\over {(c-a)}}$$
B.	$$ {(d-b)\over {(a-c)}}$$
C.	$$ {(d+b)\over {(c+a)}}$$
D.	$$ {(d-b)\over {(c+a)}}$$
Answer» B. $$ {(d-b)\over {(a-c)}}$$

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