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cum se efectueaza:scrieti sub forma unei singure puteri cu exponent nr natural 2l a puterea 15x8 la puterea 10x4 la puterea 21
multumesc!


Răspuns :

2^15*8^10*4^21=2^15*(2^3)^10*(2^2)^21=
2^15*2^(3*10)*2^(2*21)=2^15*2^30*2^42=2^(15+30+42)=2^87
2^15x8^10x4^21=
=2^15x (2^3)^10x (2^2)^21=
=2^15x2^30x2^42=
=2^87