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Byju's Answer
Standard X
Mathematics
Formation of a Quadratic Equation From It's Roots
If one zero o...
Question
If one zero of the polynomial
x
2
+ kx + 18 is double the other zero then k =?
A
3
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B
±3
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C
9
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D
± 9
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Solution
The correct option is
D
± 9
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