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(2^10-10^9) ÷ (10^9-10^8)

Răspuns :

10^9= (2x 5)^9= 2^9x 5^9; se da factor comun in prima paranteza 2^9 ; 2^9( 2-5^9) /10^8(10-1) = 2^9(2-5^9)/2^8x5^8x 9 = 2(2-5^9) /5^8x9