Logarithmic function:solve for x: 4 log x2, Mathematics

Assignment Help:

Solve for x: 4 log x = log (15 x2 + 16)

Solution:              x4 - 15 x2 - 16 = 0

               (x2 + 1)(x2 - 16) = 0

               x = ± 4

  But log x is not described when x = - 4, the x = 4 is the only answer.

 

 


Related Discussions:- Logarithmic function:solve for x: 4 log x2

Variation, If p=10 when q=2,find p when q=5

If p=10 when q=2,find p when q=5

Which of the following could not be the translation, If the expression 9y -...

If the expression 9y - 5 represents a certain number, which of the following could NOT be the translation? a. five less than nine times y b. five less than the sum of 9 and y c

Explain basic concepts of parallel lines, Explain Basic Concepts of Paralle...

Explain Basic Concepts of Parallel Lines ? Parallel lines are defined in section 1.2 and we use "//" to denote it. From the definition, we can get the following two consequenc

Direction fields, This topic is specified its own section for a couple of p...

This topic is specified its own section for a couple of purposes. Firstly, understanding direction fields and what they tell us regarding a differential equation as well as its sol

Determine the area of the walkway, Mark is preparing a walkway around his i...

Mark is preparing a walkway around his inground pool. The pool is 20 by 40 ft and the walkway is intended to be 4 ft wide. Determine the area of the walkway? a. 224 ft 2 b.

What was the total cost of the copies, Mary made 34 copies at the local off...

Mary made 34 copies at the local office supply store. The copies cost $0.06 each. What was the total cost of the copies? Multiply 34 by $0.06 to ?nd out the total cost; 34 × $0

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd