Radical Equations and Extraneous Roots

Question 2 of 3 • SSCR 26 Math Essentials A

Did your explanation include the following?

Answer

I do not agree with the student because there is no real solution.

Solving the equation only gives possible solutions, but you must check them in the original equation.

Checking the solution in the original equation shows that 4 is an extraneous solution.

Assignment

Radical Equations and Extraneous Roots

Radical Equations and Extraneous Roots