. Solve the following inequalities. Be sure to show your boundary point, number line, and test number work. Give your answer in interval notation. (a) 2x2 – 5 < 3x (b) x³ 2 4x

College Algebra
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ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter1: Equations And Graphs
Section1.9: Solving Equations And Inequalities Graphically
Problem 2E
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4. Solve the following inequalities. Be sure to show your boundary point, number line, and test number
work. Give your answer in interval notation.
(a) 2x2 – 5 < 3x
(b) x³ 2 4x
Transcribed Image Text:4. Solve the following inequalities. Be sure to show your boundary point, number line, and test number work. Give your answer in interval notation. (a) 2x2 – 5 < 3x (b) x³ 2 4x
12. Solve each equation for x. Give exact values. Be sure to check for extraneous solutions.
a. 82x = 22x+2
b. 5*+2 = 7
C. 4 log x = log 81
d. log3 (x + 4) + log3(x – 4) = 2
Transcribed Image Text:12. Solve each equation for x. Give exact values. Be sure to check for extraneous solutions. a. 82x = 22x+2 b. 5*+2 = 7 C. 4 log x = log 81 d. log3 (x + 4) + log3(x – 4) = 2
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