For individual or collaborative investigationIn this section we introduced methods of solv...

For individual or collaborative investigation

In this section we introduced methods of solving equations quadratic in form by substitution and solving equations involving radicals by raising both sides of the equation to a power. Suppose we wish to solve

We can solve this equation using either of the two methods. Work Exercise in order to see how both methods apply.

Exercise

Solve the equation by isolating  on one side and then squaring. What is the value of x that does not satisfy the equation?