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[5+5x(5 la puterea 3 - 5 la puterea 5:5 la puterea 3)] +3 x 5 la puterea 2

Răspuns :

[5+5•(5^3-5^5:5^3)]+3•5^2=580
sa le luam pe rand
5⁵:5³=5⁵⁻³=5²=5x5=25
5³=5x5x5=125
deci
[5+5x(5³-5⁵:5³)]+3x5²=[5+5x(5³-5²)]x3x5²=[5+5x(125-25)]+3x25=(5+5x100)+75=(5+500)+75=505+75=580