[7+2(5 - 9)2]/[(4+1)2 - 3(22)

Answer 1

I am confused as to what the "(22)" means. Is it twenty-two, 2 multiplied by 2, 2 squared?

Answer 2

Its 2 Times the Square Root of 2

Answer 3

are there other hidden √'s?
Is 2(5 - 9)2 = 2*(5-9)^2 ? or √(5-9)^2 or √√(5-9)
You can copy and paste the √ character. Use it an "^" for powers, and try clearing things up.