Answer:
Remove parentheses.
s
=
1
2
⋅
(
(
a
+
b
)
x
)
Remove parentheses.
s
=
1
2
⋅
(
(
a
+
b
)
x
)
Simplify
1
2
⋅
(
(
a
+
b
)
x
)
.
Apply the distributive property.
s
=
1
2
⋅
(
a
x
+
b
x
)
Apply the distributive property.
s
=
1
2
(
a
x
)
+
1
2
(
b
x
)
Multiply
1
2
(
a
x
)
.
s
=
a
x
2
+
1
2
(
b
x
)
Multiply
1
2
(
b
x
)
.
s
=
a
x
2
+
b
x
2
Explanation: