SOLUTION: My problem is: solve log(x^2+3)=log(x+6) There is no log base, so do I set the ( )= ( )? Can this be worked on a graphing calc. TI-83 plus? If so, how do I enter it. I know
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Question 230613: My problem is: solve log(x^2+3)=log(x+6) There is no log base, so do I set the ( )= ( )? Can this be worked on a graphing calc. TI-83 plus? If so, how do I enter it. I know where the log button is and y=button. Thank you. I'm trying to learn.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
My problem is: solve log(x^2+3)=log(x+6) There is no log base, so do I set the ( )= ( )? Can this be worked on a graphing calc. TI-83 plus? If so, how do I enter it. I know where the log button is and y=button. Thank you. I'm trying to learn.
-------------------
If the word "log" is used and the base is not specified it is
assumed to be 10.
-----------------------
To solve just equation x^2+3 and x+6 and solve for "x":
------------------------
Yes, you could use the TI-83
Enter log(x^2+3) as Y1 and log(x+6) as Y2
Then select Zoom and then "0".
Then select CALC
Then select 5 Intersect
---
Hit the "ENTER" key 3 times to find the intersection.
=========================================================
Cheers,
Stan H.
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