BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem
TTP OnDemand GMAT Video Course
Featured Course

Target Test Prep GMAT OnDemand

Scott Woodbury-Stewart’s private virtual classroom — 400 hours of master-class video lessons for the GMAT Focus Edition.

  • 715+ score guarantee — highest in the industry (99th percentile)
  • 52 chapters · 1,500+ lessons · 4,000+ practice questions
  • 400 hours of video · 1,500+ instructor-led HD smartboard lessons
  • 300,000+ students accepted to Harvard, Stanford, Wharton, Booth & Sloan & more
  • 24/7 live support + weekly Zoom office hours with GMAT instructors
  • TTP AI Assist — 24/7 AI-powered virtual tutor for instant help
  • 1,200+ flashcards + AI-powered study assistant & daily calendar
  • OnDemand, LiveTeach & GMAT Bootcamp formats available
  • Also: GRE, SAT Math & Executive Assessment courses
  • MBA Admissions Consulting now available
  • 🏆 2025 EdTech Breakthrough Award: Test Prep Solution Provider of the Year
  • 200,000+ students served
  • 5-day free trial — $0 to start, no auto-billing, cancel anytime
★★★★★ 5.0 (559 reviews)
130-pt guarantee
$0 to start then $127/mo
Start Free 5-Day Trial Read 559 Reviews →

If x + y^2 = (x + y ^2)^2, what is the value of y?

Expert replies
Post new topic Post Reply
Previous Topic Next Topic
Legendary Member
Posts: 2276
Joined: Sat Oct 14, 2017 6:10 amFollowed by: 3 members
by VJesus12 » Fri Dec 15, 2017 6:51 am
If $$x+y^2=(x+y^2)^2,$$ what is the value of y?

(1) x = y ^2
(2) xy ^2 = 0

The OA is C.

I don't understand why is not sufficient the statement (1). Experts, may you give me some help here, please? Thanks.
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Source: — Data Sufficiency |
User avatar
Legendary Member
Posts: 1100
Joined: Sat May 10, 2014 11:34 pmFollowed by: 24 members
Location: New Delhi, India
Thanked: 205 times

f $$x+y^2=(x+y^2)^2,$$ what is the value of y?

by GMATinsight » Sun Dec 17, 2017 6:15 am
VJesus12 wrote:If $$x+y^2=(x+y^2)^2,$$ what is the value of y?

(1) x = y ^2
(2) xy ^2 = 0

The OA is C.

I don't understand why is not sufficient the statement (1). Experts, may you give me some help here, please? Thanks.
If $$x+y^2=(x+y^2)^2,$$

then x+y^2 = 1 or 0

Question : y = ?

Statement 1: x = y ^2
@x+y^2 = 1, y ^2 = 1/2 i.e. y = 1/√2
@x+y^2 = 0, y ^2 = 0 i.e. y = 0
NOT SUFFICIENT

Statement 2: x*y ^2 = 0
@x+y^2 = 1, y ^2 = 0 or y^2=1 i.e. y = 0 or 1
NOT SUFFICIENT

Combining the two statements
x = y ^2 and x*y ^2 =
i.e. x = y = 0
SUFFICIENT

Answer: Option C
"GMATinsight"Bhoopendra Singh & Sushma Jha
Most Comprehensive and Affordable Video Course 2000+ CONCEPT Videos and Video Solutions
Whatsapp/Mobile: +91-9999687183 l [email protected]
Contact for One-on-One FREE ONLINE DEMO Class Call/e-mail
Most Efficient and affordable One-On-One Private tutoring fee - US$40-50 per hour
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Post new topic Post Reply
• Page 1 of 1