Multiplying complex numbers

Question

Multiply 

(-2 - 5i)(3+4i)

 

write answer as a complex number in standard form. 

Thanks! :) 

Answer 1

Use foil.

(-2-5i)(3+4i) = -6 -8i - 15i -20i²      i² = -1

-6 - 23i + 20

14 - 23i