Question

Todd simplifies the radius of pond A this way:
5√(164 ) meters

Step 1: 5(√100+√64)
Step 2: 5(10+8)
Step 3: 5(18)
Step 4: 90

One of Todd’s steps is incorrect. Identify which step is incorrect; and rewrite the step so it is correct.

Answer 1

Step 1 is incorrect:
correction:
step 1:
$5 \sqrt{100 \times 64}$