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Řešení nerovnice x² - 3x - 28 ≥ 0
Řeš v ℝ nerovnice:
\( \large {x^{2}}-3 x-28 \ge 0 \)
\( \large K = \left( -\infty ;-4 \right \rangle\cup \left \langle 7 ;\infty \right) \)
\( \large K = \left( -\infty ;-5 \right \rangle\cup \left \langle 6 ;\infty \right) \)
\( \large K = \left( -\infty ;-7 \right \rangle\cup \left \langle 4 ;\infty \right) \)
\( \large K = \left( -\infty ;-3 \right \rangle\cup \left \langle 8 ;\infty \right) \)