If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

Main content

Algebra II (2018 edition)

Course: Algebra II (2018 edition) > Unit 5

Lesson 1: Solving square-root equations
Math
Algebra II (2018 edition)
Radical relationships
Solving square-root equations
© 2023 Khan AcademyTerms of usePrivacy PolicyCookie Notice

Square-root equations intro

Google Classroom
You might need: Calculator

Problem

Solve the following equation for x.
square root of, x, squared, minus, x, minus, 2, end square root, equals, x, minus, 2
x, equals
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3, slash, 5
  • a simplified improper fraction, like 7, slash, 4
  • a mixed number, like 1, space, 3, slash, 4
  • an exact decimal, like 0, point, 75
  • a multiple of pi, like 12, space, start text, p, i, end text or 2, slash, 3, space, start text, p, i, end text
Stuck?
Stuck?