Tìm x
bài 1
a) (x+1)^2-(x+1)=0
b) x^2-2x=0
c)5x.(x-1).(1-x)=0
bài 2
a) (x-4)^2 -36=0
b) (x-5)^2-16=0
c) (3x{(x+5-2.(x+5)} =0
d) 3x(x+2)-6.(x+2)^2=0
bài 3
a) 3x^3y^2 -6x^2y^3 +9x^2 y^2
b) 5x^2 y^3-25c^3 y^4+10x^3y^3
c)5.(x-y)-y.(x-y)
d) 27X^2.(y-1)-9x^3.(1-y)
a) (x+1)^2-(x+1)=0
b) x^2-2x=0
c)5x.(x-1).(1-x)=0
bài 2
a) (x-4)^2 -36=0
b) (x-5)^2-16=0
c) (3x{(x+5-2.(x+5)} =0
d) 3x(x+2)-6.(x+2)^2=0
bài 3
a) 3x^3y^2 -6x^2y^3 +9x^2 y^2
b) 5x^2 y^3-25c^3 y^4+10x^3y^3
c)5.(x-y)-y.(x-y)
d) 27X^2.(y-1)-9x^3.(1-y)