Enter a problem...
Chemistry Examples
Popular Problems
Chemistry
Evaluate (-3-7)(-8-11)
(
−
3
−
7
)
(
−
8
−
11
)
(
-
3
-
7
)
(
-
8
-
11
)
Step 1
Subtract
7
7
from
−
3
-
3
.
−
10
(
−
8
−
11
)
-
10
(
-
8
-
11
)
Step 2
Subtract
11
11
from
−
8
-
8
.
−
10
⋅
−
19
-
10
⋅
-
19
Step 3
Multiply
−
10
-
10
by
−
19
-
19
.
190
190
(
−
3
−
7
)
(
−
8
−
1
1
)
(
-
3
-
7
)
(
-
8
-
1
1
)
(
(
)
)
|
|
[
[
]
]
√
√
≥
≥
a
a
7
7
8
8
9
9
≤
≤
°
°
b
b
4
4
5
5
6
6
/
/
^
^
×
×
>
>
c
c
1
1
2
2
3
3
-
-
+
+
÷
÷
<
<
!
!
π
π
,
,
0
0
.
.
%
%
=
=
⎡
⎢
⎣
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: @$#!%*?&