Giup minh bai nay vs minh can gap
tim cac gia tri x de bt A=5x+4/3x+1
a)A=0
b)A>0
c)A<0
Những câu hỏi liên quan
Minh can cac ban giai gap cho minh bai 4 de 2 va bai 1 de 3 giup minh vs a
Đọc tiếp
Minh can cac ban giai gap cho minh bai 4 de 2 va bai 1 de 3 giup minh vs a
Tim gia tri nho nhat cua cac bieu thuc sau
a) A=|5x+2|+2015
b) B=2016-|4-3x|
c) C=|x-4|+|x-3|
giup minh giai cac gia tri nay voi...dung minh se tich
HỨA SẼ TÍCH...
CMR :
1/1.2 + 1/3.4 + 1/5.6 +.........+ 1/49.50 = 1/26 + 1/27 +.......+ 1/49 + 1/50.
Tim cac gia tri cua x de cac bieu thuc sau day nhan gia tri am :
a) x2 + 5x = A.
b) 3.(2x + 3) . (3x - 5).
Ai biet thi chi giup minh hai bai toan tren nhe ! Xin cam on moi nguoi. (Cang nhan cang tot,hihi)
giup to 3 bai nay
1. gia tri x lon nhat thoa man : x2(5x-20)=15x
2 gia tri x >0 de -3x4+12x2+1 dat gia tri lon nhat
3. tap hop cac gia tri cua x thoa man : x4+x3+2x-4=0
bai 1:tim so nguyen x sao cho gia cua cac phan so la so nguyen
a)x+3/x-2
b)x2+3x-2/x+2
chu y:dau / la dau chia trong phan so
bai 2:cho A=2n+1/n-2 voi n la so nguyen
a)tim n de a la phan so
b)tim n de A nguyen
c)tinh gia tri cua A biet:n=2;1;-2;-1
giup minh voi minh dang can.Ai dung minh tick cho
Bai 14 :Tim cac gia tri cua x de bieu thuc sau nhan gia tri duong:
a) 3x-2 b)x2-5x
\(3x-2>0\)
\(\Leftrightarrow3x>2\)
\(x>0\)
\(x^2-5x>0\)
\(x\left(x-5\right)>0\)
\(x>5\)
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giup to 2 bai nay
1. gia tri x lon nhat thoa man x2(5x-2)+6=15x
2. gia tri x>0 de -3x4+12x2+1 dat gia tri lon nhat
giup to 2 bai nay
1. gia tri x lon nhat thoa man x2(5x-2)+6=15x
2. gia tri x>0 de -3x4+12x2+1 dat gia tri lon nhat
giup to 2 bai nay
1. gia tri x lon nhat thoa man x2(5x-2)+6=15x
2. gia tri x>0 de -3x4+12x2+1 dat gia tri lon nhat