Expand (x + 2)^3 + (x − 2)^3
Answers
Answered by
0
Answer:(
x
−
2
)
3
=
x
3
−
6
x
2
+
12
x
−
8
Explanation:
(
x
−
2
)
3
=
x
3
+
(
3
1
)
x
2
(
−
2
)
+
(
3
2
)
x
(
−
2
)
2
+
(
−
2
3
)
(
3
1
)
=
3
⋅
2
⋅
1
2
=
3
(
3
2
)
=
3
⋅
2
⋅
1
2
=
3
You can also use Pascal's triangle
So the answer is
(
x
−
2
)
3
=
x
3
−
6
x
2
+
12
x
−
8
Step-by-step explanation:
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