Let r and c be real numbers. If r and −r are roots of 5x³ +... — Quantitative Ability 2022

Question 915 Quantitative Ability 2022 Medium MCQ +3.00 marks · -1.00 negative

Let r and c be real numbers. If r and −r are roots of 5x³ + cx² − 10x + 9 = 0, then c equals

A. 4 B. −9/2 C. −4 D. 9/2

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