Enter a problem...
Basic Math Examples
Popular Problems
Basic Math
Evaluate (-4)-(-9)
(
−
4
)
−
(
−
9
)
(
-
4
)
-
(
-
9
)
Step 1
Multiply
−
1
-
1
by
−
9
-
9
.
−
4
+
9
-
4
+
9
Step 2
Add
−
4
-
4
and
9
9
.
5
5
⎡
⎢
⎣
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: @$#!%*?&