Jessica solved the radical equation Va-9 = 4. Her math work is shown in the table. Step
Justification
Va-9=4
Given
Step 1 (Va-9)2 = (4)2
Square both sides
Step 2 a -9 = 16
Simplify
Step 3 a - 9 + 9 = 16 + 9 Add 9 to both sides
Step 4 a = 25
Simplify
Step 5 25 -974
Check for extraneous solutions
In which step did Jessica make her first error? (1 point)
Step 2
Step 3
O Step 4