bạn chơi roblox à
\(x^4+x^2-y^2-y+20=0\)
<=> x2(x2+1)-y(y+1)=-20
bạn chơi roblox à
\(x^4+x^2-y^2-y+20=0\)
<=> x2(x2+1)-y(y+1)=-20
giai phuong trinh nghiem nguyen:x^4-x^2+2x+2-y^2=0
giai phuong trinh nghiem nguyen
2xy-2x-2y=4
y^2+2xy-3x-2=0
Giai phuong trinh nghiem nguyen sau
x^2 +y^2-x-y=8
phuong trinh \(x^2+y^2+2x=1=0\)co nghiem (x,y)=
cho phuong trinh an x: \(\frac{x+a}{x+2}+\frac{x-2}{x-a}=2\)
a) giai phuong trinh vs a=4
b)Tim cac gtri cua a sao cho phuong trinh nhan x=-1 lam nghiem
tim nghiem nguyen cua phuong trinh
x^3-y^3-2y^2-3y-1=0
giai chi tiet giup minh may bai nay nha
1 gia tri x>0 thoa man
(2x-3)2=(x+5)2
2 gia tri lon nhat cua -3x2-6x-4
3 tim gia tri cua x+y biet
x-y=2 ; x*y=99 va y <0
4 nghiem cua phuong trinh
(2x-3)2-4x2-297=0
Puong trinh chua an o mau:
Cho puong trinh 4x2 -25 +k2 +4kx=0 (an x)
a) Giai phuong trinh voi k=0
b) Giai phuong trinh voi k=-3
c) Tim cac gia tri cua k de phuong trinh nhan x=-2 lam nghiem
cho phuong trinh 2(x^2+m+1)=(1-m)(1+m) <an x>. voi =? thi phuong trinh luon co nghiem
co ghi cach giai