Which of the following is the solution set of the radical equation? 3=√(x+1) a. (9,2) b. (-9) c. (2) d. (8)

Question

Which of the following is the solution set of the radical equation?

3=
`√(x+1)`
a. (9,2)
b. (-9)
c. (2)
d. (8)

Answer 1

Answer: D
square the expression to get rid of the root, so you will get:
9= x+1
x=8

Answer 2

d. (8)

Explanation:

3 = √(x + 1)

3 = √(8 + 1)

3 = √9

3 = 3