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Question
secondary 4 | A Maths
2 Answers Below
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Please help. Thank you
Date Posted: 3 years ago
Views: 183
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k must bigger or equal to 2. Orelse you still manage to get negative root. May try if k=0,
You will get x=1 and -1
You will get x=1 and -1
Date Posted:
3 years ago
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One of the roots x = 1 is already positive.
The other root, k/2 -1, since k > 4 then you can show k/2 -1 is also positive.
The other root, k/2 -1, since k > 4 then you can show k/2 -1 is also positive.
Date Posted:
3 years ago
k > 4 since squareroot of a number must be greater than 0
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