Răspuns :
2×(8+radical18) - 3×(4+radical8) =
= 16 + 2 radical18 - 12 - 3 radical8 =
= 4 + 2 radical (2*3^2) - 3 radical (2^3) =
= 4 + 2*3 radical2 - 3*2 radical2 =
= 4 +6 radical2 - 6 radical2 =
= 4
2×(8+radical18) - 3×(4+radical8) =
= 16 + 2 radical18 - 12 - 3 radical8 =
= 4 + 2 radical (2*3^2) - 3 radical (2^3) =
= 4 + 2*3 radical2 - 3*2 radical2 =
= 4 +6 radical2 - 6 radical2 =
= 4