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If (x + k ) is the common factor of x2 + ax + b and x2 + cx + d , then what is k equal to ?
5Q:
If (x + k ) is the common factor of x2 + ax + b and x2 + cx + d , then what is k equal to ?
- 1$$ {(d-b)\over {(c-a)}}$$true
- 2$$ {(d-b)\over {(a-c)}}$$false
- 3$$ {(d+b)\over {(c+a)}}$$false
- 4$$ {(d-b)\over {(c+a)}}$$false
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