Question

Help pls √-4 - √-25
Express complex numbers in terms of i

Answer 1

that would become 2i minus 5i which gives you negative 3i

Answer 2

`i=√(-1)\\\\√(-4)=√((4)(-1))=\sqrt4\cdot√(-1)=2i\\\\√(-25)=√((25)(-1))=√(25)\cdot√(-1)=5i\\\\√(-4)-√(-25)=2i-5i=-3i`