👤

16+3√7x[21√3-3x(7√3+2√7)]

Răspuns :

16+3√7x[21√3-3x(7√3+2√7)]==16+3√7x(21√3-21√3-6√7)=
=16-3√7x6√7=
=16-18x7=
=16-126=-110
16+3√7x[21√3-3x(7√3+2√7)]==16+3√7x(21√3-21√3-6√7)=
=16-3√7x6√7=
=16-18x7=
=16-126=-110