Các câu hỏi tương tự
cho bieu thuc : M ( x phan x^2 -25 - x-5 phan x^2 +5x ) : 2x-5 phan 5x - x^2
a) rut gon M
b) tinh gia tri cua M voi x = -2010
c) tim tat ca cac gia tri nguyen cua x de M co gia tri nguyen.
chung minh rang khong co gia tri nguyen nao cua x,y,z thoa man :x^3+y^3+x^3=x+y+z+2009
Cho bieu thuc \(A=\left(\frac{x+1}{x-1}-\frac{x-1}{x+1}+\frac{x^2-4x-1}{x^2-1}\right).\frac{x+2016}{x}\)
a, Voi gia tri nguyen nao cua x thi bieu thuc A co gia tri nguyen
b,Voi gia tri nao cua x thi A co gia tri duong
cho x, y nguyen duong thoa man xy-5x+2y=30. khi do tong cac gia tri cua x tim duoc la?
1. gia tri cua x thoa man (2x+3)(x+1)2-(2x+3)(2x-3)
2. so nghiem cua da thuc x3+6x2+11x+6 la ?
3. bieu thuc C = 8-5x-2x2 dat gia tri lon nhat tai x = ?
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
1. gia tri x >1 thoa man (9x-7)2=(5-2x)2
2.tong binh phuong tat ca cac gia tri x thoa man : 2(x+5)=x2+5x
3. gia tri cua x3+y3 biet x+y=2 va x2+y2=20
giup to 3 bai nay
1. gia tri cua x thoa man (2x+3)(x+1)2-(2x+3)(2x-3)
2. so nghiem cua da thuc x3+6x2+11x+6 la ?
3. bieu thuc C = 8-5x-2x2 dat gia tri lon nhat tai x = ?
giup to 3 bai nay
1. gia tri cua x thoa man (2x+3)(x+1)2-(2x+3)(2x-3)
2. so nghiem cua da thuc x3+6x2+11x+6 la ?
3. bieu thuc C = 8-5x-2x2 dat gia tri lon nhat tai x = ?