biet rang phuong trinh (x-3a+1)(3x+2a-5)=0 (a la tham so nguyen duong ) co mot nghiem x=1 . nghiem con lai cua phuong trinh la x=....
cho biet x=can 2 la 1 nghiem cua phoung trinh: X^3+ax^2+bx+c=0 voi cac he so huu ty. tim ca c nghiem con lai
biet rang phuong trinh (x-3a+1)(3x+2a-5)=0 (ala tham songuyen duong) co mot nghiem x=1 . nghiem con lai cua phuong trinh la x=....
Cho x,y,z la cac so duong va x+y+z=1. Tim GTNN cua M=xy+yz+zx
TIM SO NGUYEN DUONG X SAO CHO: X+ 56 VA X + 11 DEU LA SO CHINH PHUONG
Cho:
Q=(\(\dfrac{2x-x^2}{2x^2+8}\)-\(\dfrac{2x^2}{x^3-2x^2+4x-8}\)).(\(\dfrac{2}{x^2}\)+\(\dfrac{1-x}{x}\))
a, Tim dieu kien xac dinh
b, rut on q
c, Tinh Q khi x=2017
d, Tim x thuoc Z de Q thuoc Z
GIUP MINH VOI CAN GAP LAM!!!
Tim cac so nguyen x de biet thuc \(A=\dfrac{x^5+1}{x^3+1}\) co gt la so nguyen
a,Tim m de phuong trinh sau co nghiem :
4-m=\(\dfrac{2}{x+1}\)
b,Tim m de phuong trinh tren co nghiem
tim nghiem nguyen cua phuong trinh
(y+1)^4+y^4=(x+1)^2+x^2
