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- Video Course
- Video Course Overview
- General GMAT Strategies - 7 videos (free)
- Data Sufficiency - 16 videos (free)
- Arithmetic - 38 videos
- Powers and Roots - 36 videos
- Algebra and Equation Solving - 73 videos
- Word Problems - 48 videos
- Geometry - 42 videos
- Integer Properties - 38 videos
- Statistics - 20 videos
- Counting - 27 videos
- Probability - 23 videos
- Analytical Writing Assessment - 5 videos (free)
- Reading Comprehension - 10 videos (free)
- Critical Reasoning - 38 videos
- Sentence Correction - 70 videos
- Integrated Reasoning - 17 videos

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## Comment on

Product with Roots## I did this a slightly

Yvonne

## Yes, that rule is definitely

Yes, that rule is definitely accurate. It's very similar to √(xy) = (√x)(√y)

## I solved it using the

Is it correct?

## That's a perfectly valid

That's a perfectly valid approach. In fact, I think it's the best approach.

I don't cover that approach here, because the practice question appears very early in the module (just after the FOIL method video), so we haven't yet covered differences of squares.

## Can we simply identify the

## You're absolutely right. We

You're absolutely right. We can definitely use the Difference of Squares property to expand the expressions.

I don't cover that approach here, because the practice question appears very early in the module (just after the FOIL method video), so some student have not yet covered the Difference of Squares property.

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