Which equations are quadratic? a) 21 - 5x + 3 = 0 b) * = + 4 c) x = 4 d) - - - 0 e) V2r - 1 = 3 f) (x + 1)(x - 1) = 15

Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
ChapterP: Preliminary Concepts
SectionP.CT: Test
Problem 1CT
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Question
Which equations are quadratic?
a) 21 - 5x + 3 = 0
b) * = + 4
c) x = 4
d) - - - 0
e) V2r - 1 = 3
f) (x + 1)(x - 1) = 15
Transcribed Image Text:Which equations are quadratic? a) 21 - 5x + 3 = 0 b) * = + 4 c) x = 4 d) - - - 0 e) V2r - 1 = 3 f) (x + 1)(x - 1) = 15
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