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Express the square root of -80 in its simplest terms. A- cannot be determined B- 8i sqrt 10 C- 4i sqrt 5 D- 2i sqrt 20
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4 votes
Express the square root of -80 in its simplest terms.

A- cannot be determined
B- 8i sqrt 10
C- 4i sqrt 5
D- 2i sqrt 20

User Avi Chalbani
by
6.0k points

1 Answer

3 votes

Answer:

C

Explanation:

noting that
√(-1) = i

Given


√(-80)

=
√(16(-1)(5))

=
√(16) ×
√(-1) ×
√(5)

= 4i
√(5) → C

User Virolino
by
5.4k points
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