Question

Which choice is equivalent to the expression below?

√-18
OA. 18i
OB. -3√2
O C. -18i
OD. 312
OE. 3,2i

Answer 1

The expression √-18 is equivalent to 3i√2.

Step-by-step explanation:

The square root of a negative number is not a real number, but it can be represented using the imaginary unit 'i'. The expression √-18 can be written as 3i√2, which is equivalent to choice OE.

Learn more about Square roots of negative numbers