Question

4 la puterea 47 + 2 la puterea 93 +16 la puterea 23- 7 × 2 la puterea 4 totul la 23. Repedeeeeee .. Dau coroana !!!!

Answer 1

$4^{47} + 2^{93} + 16^{23} -7*{(2^{4})}^{23}= (2^{2})^{47} + 2^{93} + (2^{4})^{23} - 7*2^{92}= \\ \\ =2^{94} + 2^{93} + 2^{92} - 7*2^{92} \\ \\=2^{93}(2 + 1) - 6* 2^{92} \\ \\ =3*2^{93} - 6*2^{92} \\ \\ = 3*2^{92}(2 - 3) \\ \\ = - 3*2^{92} \\ \\ 4^{47} + 2^{93} + 16^{23} -7*{(2^{4})}^{23}= - 3*2^{92}$