Respuesta :

Answer:

12a+62b

Step-by-step explanation:

4a(2+3b)-5b(4a-10)

opening brackets

=8a+12b-20a+50b

=8a-20a+12b+50b

=-12a+62b
expand_and_simplify(4⋅⋅(2+3⋅)−5⋅⋅(4⋅−10).)
expand_and_simplify
(
4
⋅
a
⋅
(
2
+
3
⋅
b
)
-
5
⋅
b
⋅
(
4
⋅
a
-
10
)
.
)
=−5⋅b⋅(4⋅−10).+8⋅+12⋅⋅
=
-
5
⋅
b
⋅
(
4
⋅
a
-
10
)
.
+
8
⋅
a
+
12
⋅
a
⋅
b