To evaluate the subtraction (13+−225−−−−√)−(49−−√−2i), we first simplify each square root expression:
√225 = 15
√49 = 7
Now we can substitute these values into the subtraction:
(13+−15)−(7−2i)
Next, we simplify each subtraction separately:
13-15 = -2
7-2i = 7-2i
Putting these together, we have:
-2 - (7-2i)
To subtract a complex number, we distribute the negative sign:
-2 - 7 + 2i
Simplifying, we get:
-9 + 2i
Therefore, the answer is -9 + 2i.
Evaluate the subtraction (13+−225−−−−√)−(49−−√−2i)
. Provide the answer in the form of a+bi
.(1 point)
1 answer