Add 28–√+38–√.

Answer 1

To add 28 - √ + 38 - √, we need to simplify the square roots first.

The square root of a number can be simplified if it's a perfect square. In this case, the square root of 28 is not a perfect square, while the square root of 38 is also not a perfect square.

So, we cannot combine the square roots further.

Now, we can add the whole numbers together: 28 + 38 = 66.

Thus, the simplified answer is 66 - √.

Answer 2

√31 + √31

Answer 3

To add √31 + √31, we can combine the like terms.

Since both terms have the same square root (√31), we can simply add their coefficients.

√31 + √31 = 2√31.

Therefore, the sum of √31 + √31 is 2√31.