Maths-

General

Easy

Question

# Solve the radical equation . Identify any extraneous solutions

Hint:

### Rearrange the equation and then solve for x.

## The correct answer is: x = -1

### Complete step by step solution:

Here given equation is

On squaring both the sides, we have

Now, this is a quadratic equation with a = 1, b = -7, c = -8

Roots can be found with,

Here, on substituting x = 8 or -1 in given equation we get

Hence x = 8 works.

Now,

Here the extraneous solution is x = -1

### Related Questions to study

Maths-

### Does a linear , quadratic , or exponential function best model the data ? Explain.

### Does a linear , quadratic , or exponential function best model the data ? Explain.

Maths-General

Maths-

### Solve the radical equation Check for extraneous solutions

### Solve the radical equation Check for extraneous solutions

Maths-General

Maths-

### Solve the radical equation

### Solve the radical equation

Maths-General

Maths-

### Does a linear , quadratic , or exponential function best model the data ? Explain.

### Does a linear , quadratic , or exponential function best model the data ? Explain.

Maths-General

Maths-

### The speed, v, of a vehicle in relation to its stopping distance, d, is represented by the equation v =3.57√d. What is the equation for stopping distance in terms of the vehicle’s speed?

### The speed, v, of a vehicle in relation to its stopping distance, d, is represented by the equation v =3.57√d. What is the equation for stopping distance in terms of the vehicle’s speed?

Maths-General

Maths-

### Solve

### Solve

Maths-General

Maths-