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2014-10-03T19:46:22+02:00
= 6 + 4 x 3²
= 6 + 4 x 9
= 6 + 36
= 42

= 2 - 7² x ( 5 x 9 - 46 )^19
= 2 - 49 x ( 45 - 46 )^19
= 2 - 49 x ( - 1 )^19
= 2 - 49 x ( - 1 )
= 2 + 49
= 51

= ( 2^3 - 3² ) x 4
= ( 8 - 9 ) x 4
= - 1 x 4
= - 4

= 4² - 3^-4 x 3^6
= 16 - 1 / 81 x 729
= 16 - 9
= 7