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myrzilka [38]
4 years ago
12

Please help I'm running out of time

Mathematics
1 answer:
Ganezh [65]4 years ago
6 0
So remember that \sqrt{x}  \sqrt{y} = \sqrt{xy} so \sqrt{-18} = \sqrt{9}  \sqrt{-1}  \sqrt{2} =3i\sqrt{2} \sqrt{-2} = \sqrt{-1} \sqrt{2} =i\sqrt{2} i\sqrt{2}+3i\sqrt{2}=\sqrt{2}(i+3i)=\sqrt{2}(4i)=4i\sqrt{2} answer is second one or 4\sqrt{2}i
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