] D 2. Find the discriminant to determine the number of roots, then solve the quadratic equation using the quadratic formula. 2² – 4x – 21 = 0 discriminant b – 4ac number of roots -b+ V – 4ac solution I = 2a

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,...
Question
100%

Find the discriminant to determine the number of roots, then solve the quadratic equation using the quadratic formula.

SC
1
im
100
-100
olu
7 and -3
2.
Transcribed Image Text:SC 1 im 100 -100 olu 7 and -3 2.
2. Find the discriminant to determine the number of roots, then solve the quadratic equation using the quadratic formula.
2² – 4x – 21 = 0
discriminant 6 – 4ac
number of roots
-b+ V – 4ac
solution 2 -
2a
Transcribed Image Text:2. Find the discriminant to determine the number of roots, then solve the quadratic equation using the quadratic formula. 2² – 4x – 21 = 0 discriminant 6 – 4ac number of roots -b+ V – 4ac solution 2 - 2a
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