Question

ajutati-ma va rog!! 5 la puterea 18 minus 5 la puterea 14 , cat este?

Answer 1

   
[tex]\displaystyle \bf\\ 5^{18}-5^{14}= \\\\ =5^{14+4}-5^{14}= \\\\ = 5^{14}\times 5^{+4}-5^{14}=\\\\ =5^{14}(5^4 -1) =5^{14}(625 -1) = \boxed{\bf 624\times 5^{14}}[/tex]