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Comment on Combining Factoring Techniques
Hi. I noticed that there is a
You'll find some questions in
You'll find some questions in the Reinforcement Activities boxes here https://www.gmatprepnow.com/module/gmat-algebra-and-equation-solving/vid... and here https://www.gmatprepnow.com/module/gmat-algebra-and-equation-solving/vid...
Thank you!!
f a, b, and c are constants,
(A) - 3
(B) -1
(C) 0
(D) 1
(E) 3
Hi Brent,
Grateful for your solution for the above mentioned question please.
Thanks a lot
Fatima-Zahra
Nice question! I've now added
Nice question! I've now added it to the Reinforcement Activities.
Here's my full solution: https://gmatclub.com/forum/if-a-b-and-c-are-constants-a-b-c-and-x-3-x-x-...
Cheers,
Brent
C = -1
Yes, that's correct.
Yes, that's correct.
Could you please explain an
If xy =/ 0, is x^3 + y^3 > 0?
1. x + y > 0
2. xy > 0
Tricky question!
Tricky question!
Here's my full solution: https://gmatclub.com/forum/if-xy-0-is-x-3-y-268848-20.html#p2637435
By the way, FACTORING sums of cubes is beyond the scope of the GMAT. However, for this question, we need not factor x³ + y³.
https://gmatclub.com/forum/15
so I'm not sure but lowered choices that unit digit is 3.
here is what I do, so 15(15+54) unit digit is 5, (27-22)^2 unit digit is 5, add up to 0 and 63(-63+44) unit digit is -7 so that's why I narrowed down to 33% chances.
Question link: https:/
Question link: https://gmatclub.com/forum/15-310016.html
Perfect! As you can see, the question is super difficult. In such cases, student's must be on the lookout to maximize their odds of answering correctly. That's exactly what you did.
Nice work!
Sorry, I made a mistake here