Enter a problem...
Calculus Examples
Popular Problems
Calculus
Evaluate the Function f(4)=(x^2-2x-8)/(x-4)
f
(
4
)
=
x
2
−
2
x
−
8
x
−
4
f
(
4
)
=
x
2
-
2
x
-
8
x
-
4
Step 1
Replace the
variable
x
x
with
4
4
in the
expression
.
f
(
4
)
=
(
4
)
2
−
2
⋅
4
−
8
(
4
)
−
4
f
(
4
)
=
(
4
)
2
-
2
⋅
4
-
8
(
4
)
-
4
Step 2
Subtract
4
4
from
4
4
.
f
(
4
)
=
(
4
)
2
−
2
⋅
4
−
8
0
f
(
4
)
=
(
4
)
2
-
2
⋅
4
-
8
0
Step 3
The
expression
contains a
division
by
0
0
. The
expression
is undefined.
Undefined
⎡
⎢
⎣
x
2
1
2
√
π
∫
x
d
x
⎤
⎥
⎦
[
x
2
1
2
π
∫
x
d
x
]
Please ensure that your password is at least 8 characters and contains each of the following:
a number
a letter
a special character: @$#!%*?&