Reguli de calcul cu puteri:
[tex]7\cdot 7^{23}:7^{24}=7^{24}:7^{24}=7^0=1[/tex]
[tex]11^{50}-11\cdot 11^{49}=11^{50}-11^{50}=0[/tex]
[tex]2^{17}\cdot 2^{18}-2^{34}\cdot 2=2^{35}-2^{35}=0[/tex]
[tex]15^2\cdot 15^{20}-15^{22}=15^{22}-15^{22}=0[/tex]
[tex]9^2\cdot 9^{18}-9^{20}=9^{20}-9^{20}=0[/tex]
[tex](4^2:2^2)^2\cdot 4^{18}:256^5=4^2\cdot 4^{18}:(4^4)^5=4^{20}:4^{20}=4^0=1[/tex]
Un alt exercitiu gasesti aici: https://brainly.ro/tema/540798
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