Radical Equations and Extraneous Roots

Question 1

Which equation can be rewritten as x + 4 = x2? Assume

Revolt · Accepted Answer

StartRoot x + 4 EndRoot = x

Question 2

Which of the following is an extraneous solution of ?

Revolt · Accepted Answer

x = –8

Question 3

Which equation is equivalent to ?

Revolt · Accepted Answer

StartRoot x EndRoot = 15 minus 11

Question 4

Which of the following is an extraneous solution of ?

Revolt · Accepted Answer

x = 3

Question 5

Determine the solution for the following equation:

Revolt · Accepted Answer

x = 3

Question 6

Which of the following is a radical equation?

Revolt · Accepted Answer

7 StartRoot x EndRoot = 14

Question 7

What is the solution of ?

Revolt · Accepted Answer

x = 2 or x = 3

Question 8

Which of the following is a radical equation?

Revolt · Accepted Answer

StartRoot x EndRoot + 3 = 13

Question 9

Which equation is equivalent to ?

Revolt · Accepted Answer

x2 + 81 = x2 + 20x + 100

Question 10

What is the solution of ?

Revolt · Accepted Answer

x = twelve-fifths

Radical Equations and Extraneous Roots Answers