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Foundations
medium
0:00.0
Simplify:
(
2
x
+
3
)
2
−
4
(
x
2
+
3
x
)
(2x+3)^2 - 4(x^2+3x)
(
2
x
+
3
)
2
−
4
(
x
2
+
3
x
)
.
A
9
9
9
B
4
x
2
+
9
4x^2+9
4
x
2
+
9
C
−
9
-9
−
9
D
0
0
0
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