KageSamurai KageSamurai

24-08-2021
Mathematics

contestada

Hey I need help with this problem pls.
Which expression is equal to 2√-28?

−4√7

−4i√7

4i√7

4√7i

Respuesta :

ma5007482 ma5007482

24-08-2021

Step-by-step explanation:

=2√-28

=2√4×7×-1

=2(2)√7×-1

=4i√7 (i=√-1)

Note:if you need to ask any question please let me know.

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