Question

Va rog muuuuult dau coroana
Calculați: a) [(-3)⁴×9⁵+3¹³]:3¹²– 3² =​

Answer 1

Răspuns:

$(3 {}^{4} \times 3 {}^{10} + 3 {}^{13} ) \div 3 {}^{12} - 3 {}^{2} = \\ (3 {}^{14} + 3 {}^{13} ) \div 3 {}^{12} - 9 = \\ 3 {}^{13} (3 + 1) \div 3 {}^{12} - 9 = \\ 3 {}^{13} \times 4 \div 3 {}^{12} - 9 = \\ 3 \times 4 - 9 = \\ 12 - 9 = 3$