3. Rewrite the following logarithmic expressions in condensed form. log, 9 – log2 y +log, x – log2 3 b. -8 log , (3n – 1) – 10 = -10 b. (In 8x² – In 4 – 3 In x – In y) -5 log, (-10x+6) + 9 = –11 c. 4. Solve the following logarithmic equations. Check for extraneous solutions. a. log, (-20 + 2r²) = log, (3r² + 9r) d. log2(x + 5) – log2(x – 2) = 3
3. Rewrite the following logarithmic expressions in condensed form. log, 9 – log2 y +log, x – log2 3 b. -8 log , (3n – 1) – 10 = -10 b. (In 8x² – In 4 – 3 In x – In y) -5 log, (-10x+6) + 9 = –11 c. 4. Solve the following logarithmic equations. Check for extraneous solutions. a. log, (-20 + 2r²) = log, (3r² + 9r) d. log2(x + 5) – log2(x – 2) = 3
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter5: Inverse, Exponential, And Logarithmic Functions
Section5.6: Exponential And Logarithmic Equations
Problem 27E
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