Please help meeeee111
√(12-√(4х+9))=3 12-√(4х+9)=9 √(4х+9)=3 4х+9=9 4х=0 х=0
✓(12-✓(4х+9))=3 12-✓(4х+9)=9 -✓(4х+9)=-3 ✓(4х+9)=3 4х+9=9 4х=0 х=0