Question

Evaluate x + sq root(yz) when x = 3, y = 2, and z = –8.

7i
3 + 4i
3 - 16i
3 + 16i

Answer 1

The value of the expression x + sqrt(yz) when x = 3, y = 2, and z = -8 is 3 + 4i.

Step-by-step explanation:

To evaluate the expression x + sqrt(yz), we substitute the given values for x, y, and z. Given x = 3, y = 2, and z = -8:

x + sqrt(yz) = 3 + sqrt(2*-8) = 3 + sqrt(-16) = 3 + 4i

Therefore, the value of the expression is 3 + 4i.

Answer 2

Just remember
`√(-1) = i`

Sub in the numbers:

`3 + √(-16) = 3+ √(16)√(-1) = 3 + 4i`