TMUA 2019 Paper 1 Q2 — Worked Solution

P1·Inequalities, Algebra & Surds·5.0Official · 2019 · Q2

discriminantpositive-definitequadratic-inequality

Find the complete set of values of the real constant

k

for which the expression

x^{2} + k x + 2 x + 1 - 2 k

is positive for all real values of

x

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