Free GRE Prep Hour: Exponent Workout

[@ashishsinha9035]

Thanks Manhattan Prep and Whitney Garner for the highly informative and beneficial session !

[@عبداللهغفاری-ق4ح]

Love you! From New Jersey, refugee camp! Just escaped Taliban and enjoy watching your videos. 😆

[@juieeyadav6890]

how is this possible 2^5 2^7 = 2^14?

[@adityaS011]

Your videos are very helpful

[@yashmalajain1270]

Mam but on rechecking the m and n values right and left side are not same

[@manhattanprepgre7390]

Hi there! Are you referring to question 3? In that situation, we were able to reduce the equation down to 2^18 times 5^m on the left, and 2^2n and 5^n on the right. You'll see this at 35:50. Once you have an equation with the bases as reduced as possible, you set the common bases equal to each other. IN other words, 2^18 must equal 2^2n, and 5^m must equal 5^n. Why? Because in order for the sides to be equal, there must be the same number of 2s on both sides and the same number of 5s. Because there are 18 twos on the left, there must be 18 twos on the right. so 2^2n must be equal to 2^18. Therefore 2n = 18, or n = 9. Similarly, the number of 5s must be the same on both sides, so m must equal n. If n = 9, then m = 9. Hope this helps! :)

[@GibsTrons]

@@manhattanprepgre7390 That is one possible solution but it isn't the only one here because you have two variables. If you plug in three for N for example, and you could get a different value for M

[@fesamote]

Great teacher

[@manhattanprepgre7390]

Thank you! 😃

[@sachindubey170]

Thanks ✌🏾

[@manhattanprepgre7390]

You're very welcome!

[@sujaanaryal6355]

Nice :)

[@titanium__ladkaa1014]

❤️Love from INDIA, MAM YOUR WAY of teaching is top notch , its dazed ! And I AM ALSO PREPARING FOR GRE exam so can u guide me or give me some tips for GRE exam Hope u will reply soon thank u mam

[@manhattanprepgre7390]

Hi there! We would recommend checking out this page: www.manhattanprep.com/gre/prep/ to see all the different prep options we offer to help get you ready for your test!

[@munawarhussain7878]

The easiest section for me. lol