√x²-12=√x
Х-12=√x
(х-12)²=х
x²-24x+144-x=0
x²-25x+144=0
x₁=(25+√625-576)/2 x₂=(25-√625-576)/2
x₁=32/2=16 x₂=18/2=9
√x²-12=√x
Х-12=√x
(х-12)²=х
x²-24x+144-x=0
x²-25x+144=0
x₁=(25+√625-576)/2 x₂=(25-√625-576)/2
x₁=32/2=16 x₂=18/2=9