Solve the following equations:

Question

lg x + 2 lg y = 3

x^2.y = 125

Answer 1

Student, people are avoiding this question because of the ambiguous "lg" notation.

It's not conventional; I believe that you intend to mean "logarithm" but which base (10 or e) it should be makes a difference.  Either say log (common log, base 10) or say ln (natural log, base e).

 

I also think that your second equation is best written as yx² = 125.  While you can use • for multiplication, you should not use the period (.)

 

I suggest that you should revise this question accordingly.