Apart from writing out the answer it is hard to help you because we do not know what the difficulty is here: 422 is 16x2, and 523 is 25x3 and the difference is 43. Or perhaps you mean 4xsquared 2 - 5x squared 3, but even then we don't know what the difficulty is.
54.3 squared
Four minus two and three-eighths equals one and five-eighths.
one and five sevenths
seventy-eleven and a half
x squared plus 5
By factoring I get x-3 divided by x+3
54.3 squared
Four minus two and three-eighths equals one and five-eighths.
3.
one and five sevenths
seventy-eleven and a half
3+25-25+3-4=2
x squared plus 5
Five plus five minus six is four The answer is 4!! Five plus five minus six is four The answer is 4!! Five plus five minus six is four The answer is 4!!
15.
Four and one third, thirteen over three, or 4.33
-8 and 2/9