Prosze o rozwiązanie :
9r (do potęgi 4) -1690r (do drugiej) + 28561 = 14080
9 (do potegi 4) - 1690 ( do drugiej) + 28561= 14080
6561r - 2856100r + 28561= 14080
6561r - 2856100r = 14080 - 28561
-2849539r= - 14481 : (-2849539)
r=0.005
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9 (do potegi 4) - 1690 ( do drugiej) + 28561= 14080
6561r - 2856100r + 28561= 14080
6561r - 2856100r = 14080 - 28561
-2849539r= - 14481 : (-2849539)
r=0.005