GMAT Inequalities Sample Question | 650 Level | Solution of Polynomials & Quadratic Expressions

[@Anurag-cs9js]

People criticising the time constraint must understand, he has methodically broken down the whole problem and covered may topics step by step. While solving, I personally marked all values given in option on a number line and substituted the values which were repeated maximum no of times first and so on to eliminate options

[@yaminipanwar9262]

At 5:43, If the denominator is zero - the value of the expression will be undefined. Why are we considering this?

[@hardikjagga7190]

yeah exactly

[@aditi4757]

Exactly, we don’t want a undefined value that’s the reason the range is greater and lesser than zero, those three values taken before weren’t the exact ones, the range values are, hope this helps

[@quasarthemechanical]

The wavy line concept is way easier than the method used here. The way of plugging in values is not practical during the test.

[@suringandhi3026]

Thank you. Excellent video. Will subscribe for the paid videos too.

[@AbbasAli-di7ge]

Baskar Sir, if I try to solve it by wavy line concept, don't you think that we will be spared of all the trouble of plugging in the values and will also save a considerable amount of time.

[@vish720p]

Excellent explanation. much appreciated.

[@rishibhardwaj7907]

very useful video. thankyou for bringing this.

[@ujjwalsingh4314]

when we put values of x less than -0.33 or between -0.33 and 0, why inequality is not change?

[@rishibhardwaj7907]

the ineqality sign changes only when we multiply or divide by any negetive number. here we are just substituting the value. hope you find it useful.

[@ujjwalsingh4314]

@@rishibhardwaj7907 got it . thanx

[@stkhan1945]

sir , why is 0 a root here ?

[@Wizako]

Hi, We have just calculated the zeroes of each component in the expression for the sake of plotting those zeroes into the number line to find the range of values satisfying x.

[@mohdsadiq2009]

Too fast

[@Wizako]

It might help to revisit our quant video lessons in a different order. As you go from videos establishing basics to higher-level practice questions, the pace might seem better. Can I suggest that you check out kzbin.info/www/bejne/Z6Crm5WKr5uSsNU first? Good luck with your prep!