Question

[Pham Trong Bach]

Tìm x, biết:

a) 2-x = 2 ${(\mathrm{x}-2)}^3$;                       b) 8 ${\mathrm{x}}^3$ - 72x = 0;

c) ${(\mathrm{x} - 1,5)}^6 + 2{(1,5-\mathrm{x})}^2$ = 0;   d) 2 ${\mathrm{x}}^3$+3 ${\mathrm{x}}^2$+3 + 2x = 0;

e)  ${\mathrm{x}}^3$ - 4x- 14x(x - 2) = 0;          g)  ${\mathrm{x}}^2$(x + 1)- x(x + 1) + x(x - 1) = 0.

Answer 1

[Cao Minh Tâm]