-7/25<x/30<-1/5
quy đồng mẫu
=>(-42/150)<(5x/150)<(-30/150)
vậy số giá trị là 11
-7/25<x/30<-1/5
quy đồng mẫu
=>(-42/150)<(5x/150)<(-30/150)
vậy số giá trị là 11
cho x ; y la cac so nguyen to sao cho gia tri tuyet doi cua x cong gia tri tuyet doi cua y bang 5 so cap so nguyen (x;y) thoa man la
so cac gia tri nguyen cua x thoa man -5<x<3 la ...
So cac gia tri nguyen cua x thoa man |x.(x^2 - 3)| = x la
So gia tri nguyen cua x thoa man : /x2-5/+/5-x2/=40
/.../ la gia tri tuyet doi.
so gia tri nguyen cua x thoa man |x|\(\le\)5 la ......?
Nhung so nao trong cac so:-4;-3;-2;-1;0;1;2;3;4 la gia tri cua so nguyen x thoa man :x.(4+x)=-3
nhung so nao trong cac so -4,-3,-2,-1,0,1,2,3,4 la gia tri cua so nguyen x thoa man dang thuc:x . (4+x) =-3?
tap hop cac gia tri nguyen cua x thoa man (x^2+4x+13) chia het cho (x+4) co so phan tu la ..............
tap hop cac gia tri nguyen cua x thoa man (x mũ 2 +4x+13) chia het cho (x+4) co so phan tu la ??????????????????????????????????