false or true

lga+lg1/a=0 

Is this true or false? 

I think it is true only if a=1.

Is this equation a quadratic one with two variable terms?

5+2x-3x^2 I think it is quadratic but it doesnt have two variable terms in it so it must be false?

lga+lg1/a=0 

Is this true or false? 

I think it is true only if a=1.

\(log\;a+log\frac{1}{a}=log\;(a*\frac{1}{a})=log\;1 = 0\)

So true  :)

5+2x-3x^2     DOES have two variable terms in it.

It does but there is only two x'es and by two variable terms I think they mean two different ones for example Y and X.