Tìm x, biết
Bài 8: tìm x, biết
a, (x+2)^2-x(x+3)=2
b, (x+2)(x-2)-(x+1)^2=7
c, 6x^2-(2x+1)(3x-2)=1
d, (x+2)(x+3)-(x-2)(x+1)=2
e, 6(x-1)(x+1)-(2x-1)(3x+2)+3=0
a, (x+2)^2-x(x+3)=2
b, (x+2)(x-2)-(x+1)^2=7
c, 6x^2-(2x+1)(3x-2)=1
d, (x+2)(x+3)-(x-2)(x+1)=2
e, 6(x-1)(x+1)-(2x-1)(3x+2)+3=0