Question

simplify sqrt -50 - sqrt -16

Answer 1

= [5sqrt(2) -4] i

Answer 2

5 i sqrt(2)-4 i

Answer 3

sqrt -50 + sqrt -16

Answer 4

\[\sqrt{-50} - \sqrt{-16} \]
\[\sqrt{-50} = \sqrt{25} \times \sqrt2 \times \sqrt{-1}\]\[\sqrt{-50}=5\sqrt2 i\]
\[\sqrt{-16}= \sqrt{16} \times \sqrt{-1}= 4i\]

\[\sqrt{-50} - \sqrt{-16} = 5\sqrt2 i -4i\]

Answer 5

\[\sqrt{-50}+\sqrt{-16}\]\[=5\sqrt2i + 4i\]