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4^3:2^2-18^0[5^10:5^9-6^2•(7^15:7^13-72)]
4^3:2^2-18^0[5^10:5^9-6^2•(7^15:7^13-72)]
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4^3:2^2-18^0×[5^10:5^9-6^2×(7^15:7^13-72)]
=
=2^6:2^2-1×[5^1-6^2×(7^2-72)] =
=2^4-[5-36×(49-72)] =
=2^4-[5-36×(-23)] =
=2^4-(5+828) =
=16-833=
=-817
varianta cu 7^2 in loc de 72
4^3:2^2-18^0×[5^10:5^9-6^2×(7^15:7^13-7^2)] =
=2^6:2^2-1×[5^1-6^2×(7^2-7^2)] =
=2^4-(5-36×0) =
=2^4-(5-0) =
=16-5=11
=2^6:2^2-1×[5^1-6^2×(7^2-72)] =
=2^4-[5-36×(49-72)] =
=2^4-[5-36×(-23)] =
=2^4-(5+828) =
=16-833=
=-817
varianta cu 7^2 in loc de 72
4^3:2^2-18^0×[5^10:5^9-6^2×(7^15:7^13-7^2)] =
=2^6:2^2-1×[5^1-6^2×(7^2-7^2)] =
=2^4-(5-36×0) =
=2^4-(5-0) =
=16-5=11