Giúp mình với mn ơi mình đang cần gấp ạ
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PA
3
TK
1
29 tháng 7 2023
1: A=-1/2*xy^3*4x^2y^2=-2x^3y^5
Bậc là 8
Phần biến là x^3;y^5
Hệ số là -2
2:
a: P(x)=3x+4x^4-2x^3+4x^2-x^4-6
=3x^4-2x^3+4x^2+3x-6
Q(x)=2x^4+4x^2-2x^3+x^4+3
=3x^4-2x^3+4x^2+3
b: A(x)=P(x)-Q(x)
=3x^4-2x^3+4x^2+3x-6-3x^4+2x^3-4x^2-3
=3x-9
A(x)=0
=>3x-9=0
=>x=3
C
17 tháng 12 2023
12,12 x 7,5 + 12,12 : 2 + 12,12 + 12,12
= 12,12 x 7,5 + 12,12 x 0,5 + 12,12 x 1 + 12,12 x 1
= 12,12 x (7,5 + 0,5 + 1 + 1)
= 12,12 x 10
= 121,2
26 tháng 4 2023
You must wear sun scream when you're on Ly Son island
- You must go to Ly Son Island in the early morning or late afternoon
- You mustn't litter on the island
- You mustn't swim alone. You must wear sun scream when you're on my son's island
- You must go to the Sam Son beach in the early morning or late afternoon
- You mustn't litter on the island
- You mustn't swim alone.
chucbanhoctot
#tranhuyentuanh
HV
7 tháng 12 2021
1 his illness, he cannot come
2 her busyness, she couldn't help us
3 his illness, he tries to go to school on time
4 the bad weather, we tried to finish the work on the road
5 the bad weather, we got to the station late
6 the old house, she liked it
7 not wearing any shoes, Carol ran outside to see what was happening
8 being afraid of flying, Fiona had to get on the plane
mình làm phần Iv Writing thui nhá!
1.Do you like play table tennis
2.My friend goes to drama club every tuesday
3.My sister doesnt clean her room everyday