Question

−
3
⋅
(
2
x
+
5
y
)
+
5
⋅
(
x
+
3
y
)
=

Answer 1

Ответ:

− 3 ⋅ ( 2 x + 5 y ) + 5 ⋅ ( x + 3 y ) =-6х-15у+5(х+3у)=-6-15у+5х+15у=-6х+5х=-х