Các câu hỏi tương tự
gải hệ 2y^2-3y+1+ căn (y-1)=x^2 + căn x +xy và căn (2x+y) - căn (-3x+2y+4)+ 3x^2-14x-8=0
giải pt
a, 2x^3++3x^2-8x-12=0
b, x^3-4x^2-x+4=0
c,x^3-x^2-x-2=0
d,x^4-3x^3+3x^2-x=0
e,(x+1)(x^2-2x+3)=x^3+1
g,x^3+3x^2+3x+1=4x+4
giải pt
a 3x(x-1)+2(x-1)=0
b x^2-1-(x+5)(2-x)=0
c 2x^3 +4x^2-x^2+2=0
d x(2x-3)-4x+6=0
e x^3-1=x(x-1)
f (2x-5)^2 -x^2-4x-4=0
h (x-2)(x^2+3x-2)-x^3+8=0
Giải pT
1) x^3-5x^2+3x+1=0
2) x^4-3x^3+4x^2-3x+1=0
3) 3x^3+2x^2-4x-1=0
4) x^4+x^3-13x^2-x+10=0
5) x^4-2x^3-13x^2+14x+24=0
6) 3x^3+x^2-5x-3=0
Giải pt
1, 9x^2-1 =(3x+1)(4x+1)
2, 2x^3+3x^2-32x=48
3, (2x+5)^2-(x+2)^2=0
4, 2x^3+6x^2=x^2+3x
Gải PT \(\sqrt{x^2+12}+5=3x+\sqrt{x^2+5}\)
Gải pt nghiệm nguyên:\(x^2+6xy+8y^2+6y+3x=2.\)
giải pt :
√x^2 -4x +6 = x+4
√(x^2 -3x +2 ) -3 -x =0
√ 5x-1 -√3x-2 -√x-1 = 0
√x+1 + √x+10 = √x+6 +√x+5
√x+1 + √5x =√4x-3 + √2x+4
giải pt
a 2(x+3)(x-4)=(2x-1)(x+2)-27
b (3x+2)(x-1)-3(x+1)(x-2)=4
c (x+2)(x^2 -2x+4)-x(x-3)(x+3)=26
d (3x+2)(3x-2)-(3x-4)^2=28
e 5(x+3)^2-5(x-4)(x+8)=3x
f 2x(x+2)^2-8x^2=2(x-2)(x^2+2x+4)
g (2x-1)(4x^2+2x+1)-4x(2x^2-3)=23
h x(x-2)(x+2)-(x-3)(x^2+3x+9)+1=0
i x(x^2+x+1)-(x-1)(x+1)x=x^2+2