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Precalculus Examples
Step-by-Step Examples
Precalculus
Quadratic Equations
Find a,b,c
x
2
−
5
x
=
−
9
x
2
-
5
x
=
-
9
Step 1
Add
9
9
to both sides of the
equation
.
x
2
−
5
x
+
9
=
0
x
2
-
5
x
+
9
=
0
Step 2
Once the quadratic is in standard form, the values of
a
a
,
b
b
, and
c
c
can be found.
a
x
2
+
b
x
+
c
a
x
2
+
b
x
+
c
Step 3
Use the standard form of the
equation
to find
a
a
,
b
b
, and
c
c
for this quadratic.
a
=
1
a
=
1
,
b
=
−
5
b
=
-
5
,
c
=
9
c
=
9
Enter YOUR Problem
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⎡
⎢
⎣
x
2
1
2
√
π
∫
x
d
x
⎤
⎥
⎦
[
x
2
1
2
π
∫
x
d
x
]
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