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Home > PC > Chapter 8 > Lesson 8.2.4 > Problem 8-127

8-127.
  1. Use properties of logs to solve each of the following equations. Use exact values. Homework Help ✎

    1. log(x + 3) = 2

    2. ln(x + 3) = 2

    3. ln 3 + ln(x) = 4

    4. ln(x + 4) − ln(x) = 2

10log(x+3) = 102
x + 3 = 100
x = 97

elog(x+3) = e2

ln(3x) = 4
eln(3x) = e4

x + 4 = xe2
xxe2 = −4
x(1 − e2) = −4