Question

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

Answer 1

Answer:

$\sqrt{64}-\sqrt{-289}$

$=8-17i$

Step-by-step explanation:

$\sqrt{64}=8$ because 8(8)=64 and 8 is the positive square root of 64.

$\sqrt{-289}=17i$ because 17i(17i)=289i^2=-289(-1)=-289.

$\sqrt{64}-\sqrt{-289}$

$8-17i$