SubArea: Expressions with powers and rootsLevel: CProject ID: 1003164002Accepted: 1Clonable: 0Easy: 0After simplifying the expression \[ a=\sqrt{6-2\sqrt5}-\sqrt5 \] we get:\( -1 \)\( 6-\sqrt5 \)\( 6+\sqrt5 \)\( 1-2\sqrt5 \)
