Section 5 #2

Quantity A : x + 1 , Quantity B : x + 1 Quantity A is greater., Quantity B is greater., The two quantities are equal., The relationship cannot be determined from the information given.

2 Explanations

▲

Raafe Khan

If you compare using the box method we will get

x^2 +1 [] x^+1

then subtract one from both sides

x^2 [] x^3

Multiply both sides by 1/(x^2)

1 [] x

Since x<1 ; The answer is A

Oct 25, 2014 • Comment

Jonathan , Magoosh Tutor

Nice job! It's fine to multiply both sides by 1/(x^2) because we know that's a positive quantity.

Jun 29, 2015 • Reply

▲

Chris Lele, Magoosh Tutor

Dec 8, 2012 • Comment

PRATHIBHA AMAND

sir when x=0 , is it right to cancel the terms by x2

Jun 26, 2015 • Reply

Jonathan , Magoosh Tutor

Actually we CAN cancel by x^2 here, because we know x^2 is positive. We wouldn't be able to cancel if we had a potentially negative value, however.

Jun 29, 2015 • Reply

Add Your Explanation

You must have a Magoosh account in order to leave an explanation.

Learn More About Magoosh

Improve Your Score

Magoosh GRE is an affordable online course for studying the GRE.

Learn More About Magoosh

Facebook

Section 5 #2

2 Explanations

Add Your Explanation

Official GRE Material

Section 5: Quantitative Reasoning

Improve Your Score

Share Post