Odpowiedzi

2010-03-02T22:41:53+01:00
Uporządkuj jednomiany :
a) -4x(do potegi 2)*1/2zy=
= -4x² *1/2 zy =
= - 2x²yz

b)4(-x)(-y)(-1)=
= - 4xyz

c) -5(a)*(c)*(-b)=
= 5abc

d)x*1/3y*(-9)*(-5)a=
= 15axy

e)-5d*(-2b)*(-1/5)a=
= - 2abd

f)2/5a*2,5*(-5)a=
= (2/5a)*(25/10)*(-5)a=
= (2/5a)*(5/2)*(-5a)=
= -5a²