2xy.\(\dfrac{1}{2}\)x2yz=x3y2z
Bậc:3+2+1=6
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thu gon va tim bac cua don thuc 2xy(x^2yz)
Cho don thuc A=(-2xy)-4/5x^2y^3 a,Thu gon don thuc tren ,cho biet phan he so va phan bien ,tim bac cua don thuc b,Tinh gia trim cua don thuc tai x=1,y=-1
Cho don thuc A=(-2xy)-4/5x^2y^3 a,Thu gon don thuc tren ,cho biet phan he so va phan bien ,tim bac cua don thuc b,Tinh gia trim cua don thuc tai x=1,y=-1
(2x²y)²nhan 3phan4 xy²
a,thu gon don thuc va tim bac cua don thuc tren
A=1/3(xy^2)^2. (1/2x^2y)^2.4/5x^3
B=2x^4y.1/4x^2y^2.(-2xy)^3
Thu gon da thuc tren
Xac dinh he so ,bac cua cac don thuc vua thu gon
Tinh A+B va A-B
A=1/3(xy^2)^2.(1/2x^2y)^2.4/5.x^3
B=-2x^4y.1/4x^2.y^2.(-2xy)^3
Thu gon da thuc tren
Xac dinh he so ,bac cua cac don thuc vua thu gon
Tinh A+B va A-B
Thu gon cac don thuc sau roi tim he so va bac cua no
a, (-2xy^3). (1/3xy)^2
b,18x^2y^2 . (-1/6x^3y)
c, (-2/3xy^2) . 6x^2y^2
Thu gon va tim bac cua don thuc sau:
(4xy^2)^3 . 3xyz
THU GON DON THUC SAU VA CHO BIET PHAN HE SO ,PHAN BIEN CUA DON THUC THU DUOC
-AX(xy^3).1/4.(-by)^3 (voi a,b la hang so)
cac ban oi giup minh voi