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Basic Math Examples
Popular Problems
Basic Math
Simplify -4 square root of 81
−
4
√
81
-
4
81
Step 1
Rewrite
81
81
as
9
2
9
2
.
−
4
√
9
2
-
4
9
2
Step 2
Pull
terms
out from under the radical, assuming positive real numbers.
−
4
⋅
9
-
4
⋅
9
Step 3
Multiply
−
4
-
4
by
9
9
.
−
36
-
36
⎡
⎢
⎣
x
2
1
2
√
π
∫
x
d
x
⎤
⎥
⎦
[
x
2
1
2
π
∫
x
d
x
]
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