Tim gia tri nho nhat cua cac bieu thuc sau:
a.(2x+1/3)^2-5/6
b.|2x-3|+|y-1/2|+3/4
a) tim gia tri nho nhat cua bieu thuc
A= | 2x-2 | + | 2x-2019 |
b) tim x lon nhat thoa man
| 2x-4 | - | 6-3x | = -1
thuc hien phep tinh roi tinh gia tri bieu thuc
x(x2-y)-x2(x+y)+y(x2-x)
tai x=2012
y=1/5
6.tim gia tri nho nhat cua bieu thuc.
D=2x^2-6x
tim gia tri nho nhat cua bieu thuc A= |2x-1|+|2x-2019|
Tim gia tri nho nhat cua bieu thuc
(x+1)^2+(y-2)^2+9
cho bieu thuc M=(x-1)^2+(y+3)^2+2002. tim gia tri nho nhat cua bieu thuc m
dang I. Tim gia tri bieu thuc
Bai 5: Cho x - y =9, tinh gia tri cua bieu thuc
B=\(\frac{4x-9}{3x+y}\)-\(\frac{4y+9}{3y+x}\)(x khac -3y, y khac -3x)
Bai 6: Hay viet cac da thuc duoi dang tong cua cac don thuc roi thu gon. tinh gia tri bieu thuc khi x=-1, y=1
a,D=4x(x+y)-5y(x-y)-4x\(^2\) b,E=(a-1)(x\(^2\)+1)-x(y+1)+(x+y\(^2\)-a+1)
moi nguoi giup minh di hu hu
TIM GIA TRI LON NHAT CUA BIEU THUC :
C=2+12/3x/X+5/+4
TIM GIA TRI NHO NHAT CUA BIEU THUC
C= -15/ 4x / 3X+7/+3