Hello person who is also from earth :)
6 - -4 = 10
Have a good day!!
Answer:
see explanation
Step-by-step explanation:
given 
To rationalise multiply the numerator/denominator by the conjugate of the denominator
the conjugate of 3 + 7i is 3 - 7i, hence

distribute the numerator/denominator
=
[ note that i² = - 1 ]
= 
= 
=
+
i
=
+
i ← in standard form
Answer:
the answer is B
Step-by-step explanation: i added the two fractions
Answer:
<h2>D</h2>
The cube of twice a number decreased by 11