Marc solves the equation (V)35. His work is shown below. Step 1: ()=5 Step 2: r = 5 Step 3: 1-51 Step 4:=√5-5-5-5 Step 5:55. 55-5 Step 6:2=5√5 1. Explain what Marc did in steps 4 and 5. (5 points) 2. Why did he do this? (5 points) 3. Create your own radical equation, at least a binomial, and explain how to solve it. (10 points) 4. Is there an extraneous solution to your equation? (5 points)

Fig: 1