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Cslculeaza: b) (7¹¹)¹³•(7¹³)⁷:(7¹⁸)¹³•7²+1²⁰¹⁷-2¹•5²

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Răspuns :

Xyzoannieask

(7¹¹)¹³•(7¹³)⁷:(7¹⁸)¹³•7²+1²⁰¹⁷-2¹•5²=

=7¹⁴³•7⁹¹:7²³⁴•7²+1-2•25=

=7²³⁴:7²³⁴•7²+1-2•25=

=7⁰•7²+1-2•25=

=7²+1-2•25=

=49+1-2•25=

=49+1-50=

=50-50=

=0

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