multiply 9x^2 and 2y^2 x^2
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Step-by-step explanation:
Rewrite
(
9
x
+
2
y
)
2
as
(
9
x
+
2
y
)
(
9
x
+
2
y
)
.
(
9
x
+
2
y
)
(
9
x
+
2
y
)
Expand
(
9
x
+
2
y
)
(
9
x
+
2
y
)
using the FOIL Method.
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9
x
(
9
x
)
+
9
x
(
2
y
)
+
2
y
(
9
x
)
+
2
y
(
2
y
)
Simplify and combine like terms.
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81
x
2
+
36
x
y
+
4
y
2
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