Các câu hỏi tương tự
tim gia tri lon nhat cu bieu thuc
a=5- gia tri tuyet doi cuax+1( voi x thuoc z)
cho x+y=5 tim gia tri nho nhat cua bieu thuc A=|x+1|+|y-2|
a) Tim so nguyen n de bieu thuc de n-1 la uoc cua 5
b) Tim so nguyen m de bieu thuc : A = -5/m-1 co gia tri nguyen voi n khong =1
Chu y :may ban lam 2 cau ruj minh tick cho ha
tim gia tri bieu thuc A voi x=-43,y=-17
A=-125(x+x+...+x-y-y-...-y)
8 x,y
tim cac dang cua x sao cho
bieu thuc A = 2x-1 co gia tri duong x
bieu thuc B = 8-2x co gia tri am
bieu thuc C=2(x+3) khong am
bieu thuc D=7(2-x)khong duong
Voi gia tri nao cua x va y thi bieu thuc
C = | x - 100 | + | y + 200 | - 1 co GTNN ; tim GTNN do
Tim gia tri lon nhat cua bieu thuc : A = 37 - |x - 8| voi x thuoc Z
tinh gia tri bieu thuc
x^2+x-8voi x =-2
-5x^3.|x-1|+15 voi x=-2
-(x-1).(x+2)voi |x|=3
(4x-5).(x-7)voi(x-2).(x+3)=0
tinhgia tri bieu thuc
ax+bx voi a+b=-125, x=-8
ax-ay+bx-by voi a+b =15 , x-y=-4
tim gia tri nho nhat cua bieu thuc: A=|x-3|+2,x thuoc Z
cac cau giup voi