Question

1.Stiind ca a+b=-23 si c=4 calculati a*c+b*c
2.Stiind ca a+b=18 si c=-9 calculati a*c+b*c
3.Stiind ca a-b=-48 si c=-3 calculati a*c-b*c
4Stiind ca a-b=67 si c= -7 calculati a*c+b*c .

Answer 1

AA SIMPLU

Stiind ca
1) a+b=-23 si c=-4, calculati a*c+b*c
c(a+b)=(-4) *(-23) =92
2) a+b=18 si c=-9, calculati a*c+b*c
c(a+b)=(-9) *18 =-162
3) a-b=-48 si c=-3, calculati a*c-b*c
c(a-b)=(-3) *(-48) =144
4) a-b=67 si c=-7, calculati a*c-b*c
c(a-b)=(-7) *67 =-469

ORICE E POSIBIL :)))
SUCCES IN CONTINUARE

Answer 2

$1).a+b=-23 \\ c=4 \\ a \cdot c+ b\cdot c=c\cdot (a+b)=4 \cdot (-23)=-92 \\ 2).a+b=18 \\ c=-9 \\ a \cdot c +b \cdot c=c \cdot (a+b)=-9 \cdot 18=-162 \\ 3).a-b=-48 \\ c=-3 \\ a \cdot c-b \cdot c=c \cdot (a-b)=-3 \cdot (-48)=144 \\ 4).a-b=67 \\ c=-7 \\ a \cdot c-b \cdot c=c \cdot (a-b)=-7 \cdot 67=-469$