Paying Off Investment Loans

Hi

Can somebody please advise?

I purchased a property to live in 8 years ago, 5 years ago I moved out to a rental and now rent my property out, I have also borrowed money using equity in my first property to purchase a 2nd property of which I also now rent out. I did this last year.

Should I try to pay off both loans as quickly as possible or just pay the minimum and max my negative gearing?

I have loans for both properties, In total I owe 400K, Both properties together are worth about 600K

thanks all, any advice much appreciated

Craig