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Answer:
Explanation:
↬ x² - 6x -5
Substituting x = 3:-
⟶ x² - 6x -5
⟶ (3)² - 6(3) -5
⟶ 9 - 6 × 3 - 5
⟶ 9 - 18 - 5
⟶ 9 - 23
⟶ -14
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