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Expand product of two linear expressions (#258)
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Expand product of two linear expressions (#258)
Expand
(
x
+
a
)
(
x
+
b
)
(x+a)(x+b)
(
x
+
a
)
(
x
+
b
)
to
x
2
+
(
a
+
b
)
x
+
a
b
x^2 + (a+b)x + ab
x
2
+
(
a
+
b
)
x
+
ab
.
