Help m & EXPLAIN . pr8 it .

what are solutions of the equation x^2=6

Ihonestly have no clue if it's each or none.

Step by step explanation pls for 10 pts the length of a rectangular board is 3 feet less than twice its width. a second rectangular board is such that each of its dimensions is the reciprocal of the corresponding dimensions of the first rectangular board. if the perimeter of the second board is one-fifth the perimeter of the first, what is the perimeter of the first rectangular board?  

Devaughn's age is three times sydney's age. the sum of their ages is 96. what is sydney's age?