Real solutions including a linear case
Real solutions including a linear case
5 marks
TGM Original
Find all real k for which (k+2)x2+4x+2=0 has at least one real solution. Check separately any value for which the equation is linear.
Solution:
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Answer:\(k\le0\); the linear case \(k=-2\) has solution \(x=-\frac12\).
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