2) tinh gia tri nho nhat va lon nhat cua bieu thuc
/x-1/-/x+3/ voi x< hoac = 7/11
1) Tim gia tri nho nhat cua cac bieu thuc sau
a) (2x+1)^4 -1
b) (x^2-16)^2 +/y-3/ -2
1) tim gia tri nho nhat cua cac bieu thuc sau
a) (2x+1)^4-1
b) (x^2-16)^2+/y-3/-2
tim tich cua hai don thuc sau:
2/3*x^2*y*z va -3*x*y^2
tim tich cua hai don thuc
-2*x^2*y^2*z va -1/3*x^2*y^3
3 cho f(x) = ax^2 + bx+c
Tinh a,b,c biet f(x) co 2 nghiem la -2va2 va a lon hon c ba don vi
thu gon don thuc
(-x^3*z*y)*(2/3*y*x^2)^2
giup mk voi
tim cac gia tri cua he so a , biet :
da thuc A =ax^7y^6-6xy+4x^3y^2 co bac 5
Cho hai da thuc P(x)=x^5-x^4 va Q(x)=x^4-x^3. Tim da thuc R(x) sao cho P(x)+Q(x)+R(x) la da thuc khong.
co
gang giai ho minh, mai minh nop roi.