Các câu hỏi tương tự
Tim x x(x+5)(x-5) - (x+2)(x^2-2x+4)=5
(x+1)^3 - (x-1)^3 -6(x-1)^2 = -19
tim x
1) 4x(x-5)-(x-1)(4x-3)=5
2) (x-5)(x-4)-(x+1)(x-2)=7
3) (x-5)(-x+4)-(x-1)(x+3)=-2x2
cho x^4-3*x^3+6*x^2-5*x+5=(x^2+a*x+1)*(x*2+b*x+3)
tim a+b=?
tim x:
(x-1)(x+2)-x^2+3=5
(x-2)(3x+4)=3x(x-2)
5(x-3)+(x-2)(5x-1)=5x^2
(tim x biet (x+1)(2-x)-(3x+5)(x+2)=-4x^2+1
tim x biet 1/x+1/x+2 + 1/x+5 +1/x+7= 1/x+1 +1/x+3 +1/x+4 +1/x+6
tim x biet 1/x+1/x+2 + 1/x+5 +1/x+7= 1/x+1 +1/x+3 +1/x+4 +1/x+6
tim x,y thuoc Z
x.( y -2 ) + 2.y = 8
x -1 /y + 5 = 1/5 va x+ y = 4
Tim X;
a/ 6x.(4x-3) - 8x.(5-3x)=43
b/(1-7x).(4x-3)-(14x-9).(5-2x)=30
c/(x+1).(x+2).(x+5) - x2.(x+8)=27