Question

В=2, √27+m, m=54, √х=-16, √х=20, х²=25. √х-2/3=0.

Answer 1

1) √27+54=√81                 3)x=√4*5

√81=9                                x=2√5

2) x=√-16

x=-√4

4) x²=25

x=5

Answer 2

I'm sorry, but I'm not quite sure what you're asking for. It seems like you've provided a series of equations and expressions, but there is no clear question or prompt for me to respond to.

Could you please provide more context and information about what you need help with? Are you trying to solve for a specific variable or simplify an expression? Any additional information you can provide will help me better understand how to assist you.