`Q(x) =-2x+1`
`Q(1/2) =-2 . 1/2 +1`
`= -2/2 +1`
`= -1 +1`
`=0`
`Q(x) =-2x+1`
`Q(1/2) =-2 . 1/2 +1`
`= -2/2 +1`
`= -1 +1`
`=0`
Cho 2 da thuc : P(x)= -3x^2+2x+1
Q(x)=-3x^2+x-2
a, Tinh Q(1/2)
b, x=1 co phai la nghiem cua da thuc P(x) ko ?
c, Tinh da thuc H(x)=P(x)-Q(x)
d, Tim tat ca cac gia tri cua x sao cho P(x)=Q(x)
GIUP MIK VOI MIK DANG CAN GAP
THANK YOU VERY MUCH
Cho hai da thuc thuc P(x)=x^4+2x^3-2x^2-6x+5 va Q(x)=x^2+(2m+1).x+m^2
Tìm m, biết P(1) = Q(-1)
cho hai da thuc:
\(P\left(x\right)=2x^3-5x^2-3x^4+7-4x\)va \(Q\left(x\right)=-3+2x^4-x+x^3-5x^2\)
a)sap xep da thuc P(x) va Q(x) theo luy thua giam dan cua bien
b)tinh P(x) + Q(x) va P(x) - Q(x)
cho da thuc Q( x)= -2x2 + mx- 7m+ 3. tim m bt rang Q(x) co nghiem la -1
Cho p(x) = 5x3 -3x +7 và Q(x)= (-5x3+2x - 3 + 2x - x2-2
thu gon 2 da thuc tren
tinh p(x)+q(x);p(x)-q(x)
Cho hai da thuc
F(x)=X3+x-1; Q(x)=3x-x2+x3+1
Tinh F(x)+Q(x)
F(x)-Q(x)
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
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
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.