110 likes | 234 Vues
How do you identify extraneous solutions in radical equations?. = x + 2. In this lesson you will learn to determine if a radical equation has an extraneous solution by solving. 5 is the radicand. = . -2. = x -7. 2. 2. = x -7. x-1= x 2 -14x + 49. x 2 -15x + 50 = 0. x = 5, x = 10.
E N D
How do you identify extraneous solutions in radical equations? = x + 2
In this lesson you will learn to determine if a radical equation has an extraneous solution by solving
= -2
= x -7 2 2 = x -7 x-1= x2 -14x + 49 x2 -15x + 50 = 0 x = 5, x = 10
In this lesson you have learned to check for extraneous solutions by substitution
How would you solve the following equation? Be sure to identify any extraneous solutions. =3 -
What would be an extraneous solution for the following equation? How do you know? • = x
Solve for x; identify any extraneous solutions = Solve for x; identify any extraneous solutions - =2