find the product (2x-1) ×(x2 +2x+7 )
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Explanation:
Method 1: Distribution
(
2
x
+
1
)
(
x
+
3
)
XXX
=
2
x
(
x
+
3
)
+
1
(
x
+
3
)
XXX
=
(
2
x
⋅
x
+
2
x
⋅
3
)
+
(
1
⋅
x
+
1
⋅
3
)
XXX
=
2
x
2
+
6
x
+
x
+
3
XXX
=
2
x
2
+
7
x
+
3
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