Cho da thuc p(x)= 6x^2-5x-1
q(x)= -2x^4+4x^3-3x^2+x
Tim nghiem Chung cua 2 da thuc
tim nghiem cua da thuc
1/2x^2 + 3/4x
Tim nghiem cua da thuc :
a,3x^2+5x+2
b,x(3-2x)x-(-2x^2+5x-4)
c,x^3+3x
Cho 2 da thuc A= 2x^3 + x^2 - 4x +x^3 + 3 ; B= 6x + 3x^3 -2x + x^2 - 5
a, Tinh tong hai da thuc A+B
b, Tinh hieu hai da thuc A-B
c, tim nghiem cua da thuc hieu A - B vua tim duoc o y b.
tim da thuc f(x) roi tim nghiem cua f(x) biet rang:x^3+2x^2(4y-1)-4xy^2-9y^3-f(x)=-5x^3+8x^2y-4xy^2-9y^3
tim nghiem cua cac da thuc
a,x^2+x
b,x^2+2x+1
c,2x^2+3x-5
d,x^2-4x+3
e,x^2+6x+5
f,3x(12x-4)-9x(4x-3)=30
g,2x(x-1)+x(5-2x)=15
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)
tim nghiem cua da thuc : Q(x)=x^2+4x+3
Tim he so a cua da thuc A(x)=ax^2+5x-3, biet rang da thuc co 1 nghiem bang 1/2?
***Can tim dap an dung, cac anh chi giai giup em a