Radical Equations and Extraneous Roots

Question 2 of 3 • ALGEBRA 2A - STANDARD (15271)

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.

Radical Equations and Extraneous Roots

Radical Equations and Extraneous Roots

Radical Equations and Extraneous Roots

AssignmentMultiple Select

Question 2 of 3 • ALGEBRA 2A - STANDARD (15271)

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.

Radical Equations and Extraneous Roots

Radical Equations and Extraneous Roots

Radical Equations and Extraneous Roots