As you might suspect, you can only add or subtract square root terms that are "like". With square roots "like" means the radicands are a perfect match. It's common for square root terms to not look alike until after you've simplified each term. In the first set of videos you'll use your previous work to simplify square root terms and then you'll add and subtract any like terms. In the second set of videos you'll distribute first and then add and subtract radical terms. This material is covered on pages 281 through 290 in the Engaging Algebra textbook.
6.5 Adding and Subtracting Square Roots
After completing these videos you'll be able to simplify square root terms and then add and subtract any like terms.
6.6 Distribution with Square Roots
After practicing with this topic you'll be able to distribute correctly as the first step in simplifying square root terms.
Test 6 Click here before taking the test to see how you should enter your answers.
If you're having trouble with a question on the test just click on the question below and you'll be taken to the videos for that question.
Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8, Q9, Q10, Q11, Q12, Q13, Q14, Q15, Q16, Q17, Q18