xin moi nguoi hay giup not cau nay , day la bai cuoi roi ah!!
tim x:
e,(3x-1)(2x+7)-(x+1)(6x-5)=16
f,x(x+1)(x+6)-x^3=5x
Thanks moi nguoi trc va vo cung cam on ah!!~
tinh so huu ti x
2/3x-3/12=4/5-(7/x-2)
2x-3/3+-3/2=5-3x/6-1/3
tim x
(x-1).(x-2)>0
2x-3<0
(2x-4).(9-3x)<0
moi nguoi giup minh nhe cam on nhieu
moi nguoi hay chieu co giup em vs:
c,3(2x-1)-5(x-3)+6(3x-4)=24
d,2x(5-3x)+2x(3x-5)-3(x-7)=3
xin dc cam on trc ah! Day la bai tim x ah!
MOI NGUOI GIUP MINH VOI NHA
Tim x thuoc Z biet :
E=6-x/x-2 nhan gia tri nguyen
Tim x, y, z biet :
a , x/5 = y/7 va x . y =140
b , x : y : z = 2 : 5 : 7 va 3x + 2y - z =27
Moi nguoi giup minh giai bai nay nha minh can gap
1)Tim x biet :3x-1/40-5x
2)3 lop 7A ,7B ,7C trong duoc tat ca 1020 cay.So cay lop 7B trong duoc bang 8/9 so cay lop 7A trong duoc.So cay lop 7C trong duoc bang 17/16 so cay lop 7B trong duoc.Hoi moi lop trong duoc bao nhieu cay ?
3)Tim x trong ti le thuc :
a,x-1/x+5=6/7
b,x^2/6=24/25
c,x-2/x-1=x-4/x-7(x khac 1,x khac -7)
d,7/x-1=x+1/9
Moi nguoi giup minh voi nhe minh xin cam on
Tính A=8/9* 15/16* 24/25* 35/36* .... *99/100
moi nguoi lam nhanh dum minh nha . Minh cam on nhieu
nhung moi nguoi luu y dau / la phan so
Tim cac so nguyen x, y biet: x/4 - 1/y =1/2 ( giai chi tiet gium minh nha cac bn . Cam on nhiu!!!!!! )
cho don thuc 3(a+1/a)x^4y^2 voi a la hang so ,a khac 0
a)tim a de da thuc luon khong am voi moi x,y
b)tim a de da thuc luon khong duong voi moi x,y
