On December 20, 2023, Brent will stop offering office hours.
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- 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.