giai phuong trinh nghiem nguyen 8x2-7x+-13= y(x-1)2
help me!
tim nghiem nguyen cua phuong trinh x^3 +(x+1)^3+(x+2)^3=(x+3)^3
Cho phuong trinh bac hai 4x^2-2(√10)+1=0 co hai nghiem x1,x2.Khong giai phuong trinh, hay tinh gia tri bieu thuc(√x14+8x22)+(√x24+8x12).
giai phuong trinh nghiem nguyen : x^2+x=y^4+y^3+y^2+y
Giai phuong trinh nghiem nguyen sau :
\(x^4+x^3+x^2=y^2\)
Giai phuong trinh nghiem nguyen
x2-xy+y2=x2y2-5
1)Giai phuong trinh:
a) x4+4x2-5=0
b)Cho phuong trinh: x2-2(m+1)x+m2+3m-4=0(1)
Giai phuong trinh khi m=2Chung minh phuong trinh luon co nghiem voi moi m.Goi x1,x2 la nghiem cua phuong trinh,tim m de thoa man dieu kien:x12+x22=10giai giup minh bai phuong trinh nghiem nguyen nay voi
x2+x=y2-19
x2+14xy+5y2=169
Giai phuong trinh
4x^3+8x^2+9x-15=0