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3 votes
Given the equation 2Square root of x minus 5 = 2, solve for x and identify if it is an extraneous solution.

2 Answers

4 votes

For what values of b is f(x) = b^x an increasing function?

A.Any real number
B.b > 0
C.b > 1
D.0< b <1

5 votes

Answer:

x=196

Explanation:

In order to solve this you just have to clear X fro the equation and solve:


2√(x) - 5=2\\ 2√(x)=2+5\\√(x)=7*2\\x=14^2\\x=196Once you´ve calculated this you have the solution for the equation, that is x.

It is not an extraneous solution.

User Fior
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