Răspunsuri

2014-11-15T12:23:13+02:00
A)1+4+9+16+25+36+49=140
B)1+8+27+64=100
2014-11-15T12:27:16+02:00

1^2+2^2.............si tot asa pana la 7^2( patratele perfecte)

1^3+2^3...................si tot asa pana la 4^3