Respuesta :

Answer:

The answer is

- 4 + 36√5

Step-by-step explanation:

- 4 - 4√15 × - 3√3

Multiply the terms

- 4 - ( 4×-3)(√15×3)

- 4 - (- 12)√45

Simplify

- 4 - (- 12)√9×5

- 4 - (-12)3√5

We have the final answer as

- 4 + 36√5

Hope this helps you