3√464

Step 1: 3 (√400 + √64)

Step 2: 3 (20 + 8)

Step 3: 3 (28)

Step 4: 84

One of the steps shown is incorrect.

Rewrite the incorrect step so that it is correct and find the correct

answer. Write the answer in radical form, no decimals.

Step 1 is incorrect.

You must find factors, not do addition or subtractions

You should rather do this:

3 (sqrt (464))

3 (sqrt (232*2)

3*sqrt (58) * sqrt (4) * sqrt (2)

3*sqrt (29) * sqrt (2) * 2*sqrt (2)

6*sqrt (2*2) * sqrt (29)

6*2*sqrt (29)

12*sqrt (29)

Sorry for such a messy answer.