Please answer the following questions (i): Are −3 and −2 solutions to x2 – x – 12 ≤ 0?                   (ii): − x2 + 4x + 5 ≥ 0                                                           (iii): (a) The discriminant is always less than 0 in quadratic inequalities True/False

Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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Please answer the following questions

(i): Are −3 and −2 solutions to x2 – x – 12 ≤ 0?                  

(ii): − x2 + 4x + 5 ≥ 0                                                          

(iii): (a) The discriminant is always less than 0 in quadratic inequalities True/False     

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