Answers created by Joel R.
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How do solve the following linear system?:
8
x
+
3
y
=
−
9
,
x
−
3
y
=
1
?
What is the second derivative of
f
(
x
)
=
x
2
ln
x
?
What is the vertex of
y
=
−
2
(
x
−
4
)
2
−
5
x
+
3
?