2x^1/2-9=11
2x^1/2-9 = 11 add 9 to both sides
2x ^(1/2) = 20 divide both sides by 2
x^(1/2) = 10 square both sides
[ x ^(1/2) ] ^2 = 10^2
x = 100
Well you just made that too easy! OK, I always get confused when I see the 1/2...thank you! I'll be coming back for more.
