Question

How do I simplify this expression?

Answer 1

Answer:

15i√2

Step-by-step explanation:

5√(-18)

= 5√(-2 x 9)

= 5 x 3 x √-2

= 15√-2

= 15i√2

Answer 2

Answer:

15i$\sqrt{2}$

Step-by-step explanation:

Require to know $\sqrt{-1}$ = i

Given

5$\sqrt{-18}$

= 5$\sqrt{9(2)(-1)}$

= 5 × $\sqrt{9}$ × $\sqrt{2}$ × $\sqrt{-1}$

= 5 × 3 × $\sqrt{2}$ × i

= 15i$\sqrt{2}$