Please type out the questions.
The first is showing (log x-2) ( * or - ) log x = 3
What sign is it a multiply or a minus sign?
Second image shows 4^x*5^x+? I can't read what it is you have written. In the future please type out these questions, so that you might receive a more timely and accurate response.
http://www.wtamu.edu/academic/anns/mps/math/mathlab/col_algebra/
Tutorial 42-46, might help you.
Good luck.
+4 
