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2^0+5x(5^100+5^99+5^98):5^98+343:7^2

Răspuns :

1+5x 5^98(5^2+5+1):5^98+ 7^3:7^2=

=1+5x(25+5+1)+7^(3-2)

=1+5x31+7

=1+155+7

=163