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Simplify
9x^2-[4x^2-{3x^2+2x-8+(x^2-2x)}]
Answers
Answered by
1
I just gave you the example of how to do it 9
2
−
1
[
4
2
−
1
(
3
2
+
2
−
8
+
(
2
−
2
)
)
]
9
x
2
−
1
[
4
x
2
−
1
(
3
x
2
+
2
x
−
8
+
(
x
2
−
2
x
)
)
]
9x2−1[4x2−1(3x2+2x−8+(x2−2x))]
Simplify
1
Eliminate redundant parentheses
9
2
−
1
[
4
2
−
1
(
3
2
+
2
−
8
+
(
2
−
2
)
)
]
9
2
−
1
[
4
2
−
1
(
3
2
+
2
−
8
+
2
−
2
)
]
2
−
1
[
4
2
−
1
(
3
2
+
2
−
8
+
(
2
−
2
)
)
]
9
x
2
−
1
[
4
x
2
−
1
(
3
x
2
+
2
x
−
8
+
(
x
2
−
2
x
)
)
]
9x2−1[4x2−1(3x2+2x−8+(x2−2x))]
Simplify
1
Eliminate redundant parentheses
9
2
−
1
[
4
2
−
1
(
3
2
+
2
−
8
+
(
2
−
2
)
)
]
9
2
−
1
[
4
2
−
1
(
3
2
+
2
−
8
+
2
−
2
)
]
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