Tim x c N biet :
a/ ( x + 1 ) + ( x + 2 ) + ( x + 3 ) ..... + 50x = 1275
b/ x + 2x + 3x + .... + 100x = 10100
giup minh nha! minh tick cho !
Tim x biet : |x-3|=x=-5
giup minh nhe minh se cam on va hau ta
Tim x biet :
a, |2x+1|-x=5
b, |x-10|10+|x-11|10=1
Trinh bay cach lam ro rang cho minh nhe
Chieu phai nap roi
Ai trinh bay ro rang nhat minh se tick
moi nguoi oi giup minh voi, ca cach giai nua nhe, dung thi minh se tich cho. thank you moi nguoi
tim x biet
x^2 - 1 < 15
Tim GTNN cua cac bieu thuc:
a,A=|x-1|+|x-2|+|x-3|+|x-4|+...+|x-10|
b,P=|3x-6|+|y2+1|+2015
Cach lam nua nhe
Lam nhanh minh se tick
Tim GTNN cua cac bieu thuc:
a,A=|x-1|+|x-2|+|x-3|+|x-4|+...+|x-10|
b,P=|3x-6|+|y2+1|+2015
Cach lam nua nhe
Lam nhanh minh se tick
Tim x biet:
a,10+x / x+17=3 / 4
b'40+x / 77-x=6/7
Nho viet ca cach lam nua nhe ,ai lam day du minh se tick!
a) 2x+48=60
b)3.(x+5)+8=80
c)2x+3x=50
d)x+2x+3x+.........+99x+100x=10100
e)x.(x+2)=0
1/cong tu va mau cua 15/23 voi cung 1 so tu nhien n roi rut gon duoc 2/3. tim n?
2/so cac so nguyen x:
15-/-2x+3/ x /5 + 4x/=-19
3/ Tim abc biet 1abc : abc du 3
Co ai bit thi giai giup minh nhe
biet bai nao thi lam bai do neu bit het thi cang tot , minh se tick nha
thanks may ban nhiu nhiu