Question

How do you simplify `5sqrt2 + 4sqrt2`?

Answer 1

`5sqrt2 + 4 sqrt2 = 9sqrt2`

Explanation:

This is exactly like `5x + 4x= 9x`

Both terms contain `sqrt2`.

Just add how many `sqrt2'` s there are..

`5sqrt2 + 4 sqrt2 = 9sqrt2`