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[9² – 2⁴.5⁹: (5⁴)²] : 2²

rezolvare in scris va rog repede​


Răspuns :

[tex] {9}^{2} = 81 \\ {2}^{4} = 16 \\ ({5}^{4} ) {}^{2} = {5}^{8} \\ {5}^{9} \div {5}^{8} = 5 \\ {2}^{2} = 4 \\( 81 - 16 \times 5) \div 4 = (81 - 80) \div 4 = \frac{1}{4} [/tex]