How does x^2 + 4/9 = 1
become
x^2 = 5/9 ?
Or 9/25 + x^2 =1
x^2 = 16/25
I'll show you the first one:
x^2 + 4/9 = 1 Subtract 4/9 from both sides of the equation
x^2 + 4/9 - 4/9 = 1 - 4/9
x^2 = 9/9 -4/9
x^2 = 5/9
much appreciated, pavlov :)
+37084 
