Question

Combine these radicals - square root 5 - 3 square root 5

Answer 1

-1√5-3√5=(√5)(-1-3)=(√5)(-4)=-4√5

Explanation:

if you combine the radicals, you will receive the answer that is shown above.

Answer 2

`-4√(5)`

Explanation:

Given expression: (square root 5) - (3 square root 5)

• ⇒
  `-√(5) - 3√(5)`

Since we have √5 common in both terms, let's factor √5.

• ⇒
  `√(5) - 3√(5)`
• ⇒
  `√(5) * (-1 - 3)`

Finally, we can simplify;

• ⇒
  `√(5) * (-4)`
• ⇒
  `-4√(5)`

Therefore, the combined radical of (square root 5) - (3 square root 5) is
`-4√(5)`