cha:32:(3-1)x3-4=44(tuổi)

con:44-32=12(tuổi)

tick nha

6: I IV VI II III VII VIII

xin loi toi sai bai a nha mong cac ban thong cam!

a)5¹⁶:5¹⁴+2⁴.2-2010⁰

⁼5²+2⁴.2¹-2010⁰

⁼5²+2³-2010⁰

⁼25+8-1

=33-1

=32

b)6²-2².3+16.3

=36-4.3+16.3

=36-12+48

=24+48

=72

tick dung cho mk nha!!

cach phan biet doan thang de nhat danh cho ban:

de ko nham lan vs duong thang:

doan thang co gioi han,nhung duong thang ko co gioi han.

doan thang vi du nhu:canh cua cai ban la doan thang vi no co gioi han

tuong tu: doan thang AB la hai mut(2 nut that cua 2 dau tuc la 2 gioi han)

sorry thua cho cuoi cung

cai chu

=4 la sai nha!

mk nham.xin loi.nhung nho tick dung cho mk do!

100:{250:[450-(4.5³ -25.4)]}

=100:{250:[450-(4.125-25.4)]}

=100:{250:[450-(500-100)]}

=100:{250:[450-400]}

=100:{250:50}

=100:5

=20

b)4.(18-15)-(5-3).3²

=4.(18-15)-(5-3).9

=4.3-2.9

=12-18

=(-6)

=4.