bai 1: Cho cac don thuc A=-4/9x^3y va B= 3/8 x^5y^3. Tim cac cap gia tri (x;y)de A,B cung gia tri am

bai 2: viet don thuc B=64xy^12 duoi dang luy thua cua 1 don thuc voi so mu khac 1

bai 3: cho A=8x^5y^3; B=-3x^6y^3; C=-6x^7y^2. CM: Ax^2+Bx+C>0

P=ax^4y^3+10xy^2+4y^3-2x^4y^3-3xy^2+bx^3y^4 Biet a,b la hang so. da thuc co bac 3. Tim a,b

a,tim a biet da thuc A(x)=ax²- 1/2x +1 co 1 nghiem la -1/2

b, tim a,b cua da thuc :B(x)= ax²+bx+5 biet B(1)=6 va B(-2) = 15

c, cho da thuc C(x)= ax+b .Tim a,b biet :

        x=4 la nhgiem cua C(x)va C(2)=1

Dang I: tinh gia tri bieu thuc

Bai 12: Cho x=2011. tinh gia tri chua bieu thuc

\(x^{2011}-2012x^{2010}+2012x^{2009}-2012x^{2008}+....-2012x^2+2012x-1\)

bai 11: Cho da thuc P(x)=ax\(^3\)+bx\(^2\)+cx+d (a khac 0)

Biet p(1)=100, p(-1)=50,p(0)=1,[(1)=120. Tinh p(3)

bai 10: Tam thuc bac hai la da thuc co dang f(x) =ax+b voi a,b,c la hang a khac 0. Hay xac dinh cac he so a,b biet f(1)=2 , F(3)=8

tim a, b biet da thuc p(x)=ax^2+ bx+ c

Cho a>=0,b>=0 thoa man 2a+3b<=6 va 2a+b<=4.Tim max va min cua bieu thuc A=a^2 -ab -b^2

Ban nao biet giup minh voi.TKS 

Cho ba so thuc a,b,c sao cho pt ax² + bx + c = 0 co hai nghiem x₁,x₂ thuoc [0;1]. Tim GTLN cua bieu thuc

P = \(\dfrac{\left(a-b\right)\left(2a-b\right)}{a\left(a-b+c\right)}\)

Tim Min va Max cua bieu thuc A=(3-4x):(x^2+1)

tim MAX va MIN cua bieu thuc sau A=(8x+15)/(x²+1)