Question

Write square root of 64 - square root of -289 as a complex number in the form of a+bi

Answer 1

8-17i

Explanation:

Got right on PLATO

Answer 2

`√(64)-√(-289)`

`=8-17i`

Explanation:

`√(64)=8` because 8(8)=64 and 8 is the positive square root of 64.

`√(-289)=17i` because 17i(17i)=289i^2=-289(-1)=-289.

`√(64)-√(-289)`

`8-17i`