Basic Math Examples

Evaluate square root of -121* square root of -49
12149
Step 1
Rewrite 121 as 1(121).
1(121)49
Step 2
Rewrite 1(121) as 1121.
112149
Step 3
Rewrite 1 as i.
i12149
Step 4
Rewrite 49 as 1(49).
i1211(49)
Step 5
Rewrite 1(49) as 149.
i121(149)
Step 6
Rewrite 1 as i.
i121(i49)
Step 7
Rewrite 121 as 112.
i112(i49)
Step 8
Pull terms out from under the radical, assuming positive real numbers.
i11(i49)
Step 9
Move 11 to the left of i.
11i(i49)
Step 10
Rewrite 49 as 72.
11i(i72)
Step 11
Pull terms out from under the radical, assuming positive real numbers.
11i(i7)
Step 12
Move 7 to the left of i.
11i(7i)
Step 13
Multiply 11i(7i).
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Step 13.1
Multiply 7 by 11.
77ii
Step 13.2
Raise i to the power of 1.
77(i1i)
Step 13.3
Raise i to the power of 1.
77(i1i1)
Step 13.4
Use the power rule aman=am+n to combine exponents.
77i1+1
Step 13.5
Add 1 and 1.
77i2
77i2
Step 14
Rewrite i2 as 1.
771
Step 15
Multiply 77 by 1.
77
 x2  12  π  xdx