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(7^4+2×7^5+3×7^6)÷162=

Răspuns :

(7^4+2×7^5+3×7^6)÷162=
=
7^4 × (1+2×7^1+3×7^2)÷162=
=7^4 × (1+14+3×49)÷162=
=7^4 × 162÷162= 7^4=2401