Tim gia tri nho nhat hoac gia tri lon nhat cua bieu thuc D = (x + 5)^2 + (2y - 6)^2 + 1
Tim gia tri lon nhat hoac nho nhat cua cac bieu thuc sau
a, C=(x-1)2+\(|2y+2|\)-3
tim gia tri nho nhat hoac lon nhat cua cac bieu thuc sau
a)A=\(|x-4|-5\)
b)B=\(-|x+3|+7\)
Tim gia tri nho nhat cua bieu thuc: P=|x|+7
(x€Z)
Tim gia tri lon nhat cua bieu thuc :Q=9-|x|
Tim gia tri nho nhat cua y de bieu thuc B=100-|y+3| co gia tri lon nhat, tim gia tri lon nhat do
Tim gia tri cua x va y de bieu thuc C = -|x-2|-|y-3|-2009 co gia tri lon nhat ,tim gia tri lon nhat do
a, tim gia tri nho nhat cua bieu thuc :\(A=\)\(|x+19|+|y-5|+1890\)
b,tim gia tri lon nhat cua bieu thuc:\(B=-|x-7|-|y+13|+1945\)
tim gia tri lon nhat cua cac bieu thuc sau
P = 3 - (x - 1)2
cho bieu thuc 2n+1/n+5(n thuoc Z)
a, tim n de Pco gia tri la 1 so nguyen
b,tim gia tri lon nhat,gia tri nho nhat cua P