Question

-3-7i/7+10i

Answer 1

Are you sure you don't mean (-3-7i)/(7+10i)?

Answer 2

no i dont know why everybody says there is supposed to be parentheses
because thats not what the paper is its rationalizing imaginary denominators

Answer 3

\[{- 3-7i \over 7+10i}={\left( -3-7i \right)\cdot \left( 7-10i \right) \over \left( 7+10i \right) \cdot \left( 7-10i \right)}\]

Answer 4

ps. when writing in a straight line, -3-7i/7+10i would read as:\[-3-{7i \over7}+10i\] you would use parentheses to compensate.

Answer 5

\[{\left( -3-7i \right)\cdot \left( 7-10i \right) \over \left( 7+10i \right) \cdot \left( 7-10i \right)}= {-21+70i^2+30i-49i \over 49-100i^2}\]

Answer 6

\[={-21-70-19i \over 49+100}={-91-19i \over 149}\ or\ -{91+19i \over 149}\]