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[(7⁵)²]⁵:(7²³x7¹⁵x7°x7x7⁹)=

Răspuns :

[(7⁵)²]⁵:(7²³x7¹⁵x7°x7x7⁹)=7⁵°:(7²³⁺¹⁵⁺¹⁺⁹)= 7⁵°:7⁴⁸=7⁵⁰⁻⁴⁸=7²=49