efectuati rapiddddddddddddd

Răspuns:
=(5¹⁷⁺¹⁸+7²³⁻¹⁵):(7¹⁺²⁺⁵+5⁵⁰⁻¹⁵)=(5³⁵+7⁸):(7⁸+5³⁵)=1