Welcome :: Homework Help and Answers :: Mathskey.com
Welcome to Mathskey.com Question & Answers Community. Ask any math/science homework question and receive answers from other members of the community.

13,459 questions

17,854 answers

1,446 comments

811,114 users

(log x)^2 = logx^2 How would you solve this math question?

0 votes
(log x)^2 =  logx^2 How would you solve this math question?
asked Dec 11, 2014 in ALGEBRA 1 by anonymous

1 Answer

0 votes

The logarithmic equation (logx)2 = logx2

(logx)(logx) = logx2

{ Apply the power property : log am = m log a}

(logx)(logx) = 2logx

(logx)(logx) - 2logx = 0

logx[ logx - 2] = 0

Apply zero product property.

logx = 0 and logx - 2 = 0

Solve logx = 0

x = 100

x = 1

Now solve  logx - 2 = 0

logx = 2

x = 102

x = 100

Solutions are x = 1 and x = 100.

answered Dec 11, 2014 by david Expert

Related questions

asked Jul 12, 2014 in ALGEBRA 1 by anonymous
asked Nov 13, 2014 in ALGEBRA 2 by anonymous
...