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

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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.

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