(7^4+2*7^5+3*7^6):162=

Răspuns :

7^4(1+2•7+3•49):162=
7^4•(15+147):162=
7^4•162:162=
7^4
7^4 ×(1+2× 7^1+ 3 ×7^2) :162
7^4 × (1+ 2×7 + 3× 49): 162
7^4× (1+14+ 147):162
7^4 × 162: 162
7^4