Simplifying Radical Expressions

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Objective

I can simplify radical expressions.

Part 1 of 4

Warm-up video

Khan Academy · 2:49Vetted channel

We don't generate video — this one is by Khan Academy on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.

Part 2 of 4

Key concepts

3 concepts

  1. 1

    To simplify 3 times the square root of 200x³, first factor 200 into 2 times 100 and x³ into x² times x.

  2. 2

    The square root of 100 simplifies to 10, and the square root of x² simplifies to x.

  3. 3

    The simplified expression combines the terms outside the radical to get 30x, and the remaining terms under the radical combine to form √2x.

Part 3 of 4

Practice

9 questions

1

What is the largest perfect square factor of 125?

2

Rewrite y^7 as a product of a perfect square and another term.

Part 4 of 4

Exit ticket

Quick comprehension check

Simplify the radical expression 5√48a³. Show all steps.

Sample answer included in the free materials

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