Question

разложите на множители 
4х^2-4;
5t^2-20st+20s^2;
с-27сd^3;
vu+vw^3

Answer 1

4х^2-4
4(x+1)(x-1)

5t^2-20st+20s^2
5(t^2-4st+4s^2)

с-27сd^3
с(1-3d)(1+3d+9d^2)

vu+vw^3
v(u+w^3)