Question

Z.29,str.156
a)
1/2(3a-2)=
b)
2/3(1,5+r)=
c)
k(31+2m)=
d)
-p(9r-5s)=

Answer 1

A)
1/2(3a-2)=3/2a-1= 1 i 1/2s-1
b)
2/3(1,5+r)=2/3*3/2+2/3r= 2/3r + 1
c)
k(31+2m)= 31k+2km
d)
-p(9r-5s)= -9pr+5ps

Answer 2

A)1½a-1
b)1+⅔r
c)31k+2mk
d)-9rp+5sp