Tìm x, biết: a) (2x + 1)(3x + 2) = (x - 1)(6x + 5) + 5x; b) (2x - 5)(3x + 2) = (x - 2)(6x + 1) + 3x; c) (2x - 1)(3x + 2) - (x - 1)(x + 4) = 5(x - 1)(x + 3)

Tìm x, biết:
a, (2x+1)*(3x+2) = (x-1)*(6x+5)+5x
b, (2x-5)*(3x+2) = (x-2)*(6x+1)+3x
c,(2x-1)*((3x+2)-(x-1)*(x+4) = 5(x-1)*(x+3)
d, x(x-1)*(x-2)-2(x^2+1)*(x-1) = -x^3 - 4
Rút gọn:
a, (3x-2)*(x+2)+ x*(x-1)+(3x-2)*(x+1)
b, (x-1)*(x-2)*(x-3)+3*(x+1)*(x+2)-2*(x^2-1)*(x+3)
c, (2x-1)*(x+4)+3*(x-1)*(x+1)+(x+2)*(x-3)
d, (3x-5)*(x+1)-(x-2)*(x+2)+4x*(x+1)
e, (2x-1)*(x+3)+4*(x-2)*(x+5)-3x*(x+4)