Subtract 7√5 - 4√5

The difference is 3√5.

To subtract 7√5 - 4√5, you can combine similar terms. Since both terms have the same radicand (5), you can simply subtract the coefficients in front of the square root:

7√5 - 4√5 = (7 - 4)√5 = 3√5

Therefore, the difference is 3√5.

To subtract 7√5 - 4√5, you need to simplify the terms with the same radical (√5).

Step 1: Start with the given expression: 7√5 - 4√5.

Step 2: Since both terms have the same radical (√5), you can combine them. Subtract the coefficients: 7 - 4 = 3.

Step 3: Copy the common radical (√5) and multiply it by the result of the coefficients: 3√5.

Therefore, the difference between 7√5 - 4√5 is 3√5.