Question

Hey brainly am mev de ajutor la ex 1 , 2 , 3 , 4 dau coroana pls help la ce puteti :(

Answer 1

notez cu ^ cand zic la puterea..
1)a)2^2+1^5=4+1=5
b)5^8:5^6=5^(8-6)=5^2=25

2)a)2^3=8
3^2=9
8<9
deci 2^3<3^2
b)3^33<5^22

3)a)2^3+2^2+2^2000(3^2-2^3-5^0)=
=8+4+2^2000(9-8-1)=8+4+2^2000•0=12
b)(5•13-3^2):2^3+672:16=
=(65-9)8+42=56:8+42=7+42=49

4)49^12+7^25=7^(2•12)+7^25=7^24+7^25=7^24(1+7)=7^24•8=7^24•2^3=
=7^3•7^3•7^3•7^3•7^3•7^3•7^3•7^3•2^3
deci 49^12+7^25 este cub
(ti-am scris asa desfasurat ca sa-ti fie clar ca e cub)