Các câu hỏi tương tự
A=1/3(xy^2)^2.(-1/2x^2y)^2.4/5x^3
B=-2x^4y.1/4x^2y^2.4/5x^3
Thu gon da thuc tren
Xac dinh he so,tim bac cua da thuc vua tim dc
Tinh A+B
va A-B
Bai 2
A=15x^2y-7xy^2+8-y^3+7xy^2+2y^3-12x^2y-1/2
Thu gon da thuc
Tim bac cua da thuc
Tinh gia tri cua da thuc A tai x=-1/2,y=1
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
cho da thuc P = (-2/3x^3y^2)(1/2x^2y^5) a) thu gon da thuc P roi xac dinh he so va phan bien cua don thuc ?
b) tinh gia tri cua P tai x = -1 , y =1
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
cho A = 4y+9x2-1/2x2-2y
thu gon a roi tim gia tri cua da thuc tai x=-1;y=-1
Thu gon cac da thuc sau
A) 1/3x^3yz.(-6xy).(-5xy^2z^3)
B) 3x^2y+5xy^2-2x^2y+4xy^2-x^2y
thu gon don thuc tim bac he so cua da thuc A=x^3 *(-5/4x^2y)*(2/5x^3y^4)
cho hai da thuc A(x)=2x(x-2)-5(x+3)+7x^3 va B(x)=-x(x+5)-(2x-3)+x(3x^2-2x).a, thu gon A(x),B(x).b, tim nghiem cua da thuc P(x)=A(x)-B(x)-x^2(4x+5)
thu gon don thuc tim bac he so cua da thuc A=x^3 *(-5/4*x^2*y)*(2/5*x^3*y^4)