Răspuns :
1. 3√192-4√75+2√48-2√12=
=3×8√3-4×5√3+2×4√3-2×2√3=
=24√3-20√3+8√3-4√3=8√3
2. √(2x-1)²=7
|2x-1|=7
1. 2x-1= -7
2x= -6
x= -3
2. 2x-1=7
2x=8
x=4
S={-3,4}
1. 3√192-4√75+2√48-2√12=
=3×8√3-4×5√3+2×4√3-2×2√3=
=24√3-20√3+8√3-4√3=8√3
2. √(2x-1)²=7
|2x-1|=7
1. 2x-1= -7
2x= -6
x= -3
2. 2x-1=7
2x=8
x=4
S={-3,4}