Răspuns :
5 x 5+ 3 x 3 x 3 x 3- 2x2x2x2x2=
=25+9x3x3-4x2x2x2=
=25+27x3-8x2x2=
=25+81-16x2=
=25+81-32=
=106-32=
=74.
=25+9x3x3-4x2x2x2=
=25+27x3-8x2x2=
=25+81-16x2=
=25+81-32=
=106-32=
=74.