Sign Up For Free

**Join for FREE**,
and start talking with other members, weighing in on community polls,
and more.

Also, by registering and logging in you'll see fewer ads and pesky welcome messages (like this one!)

- Reply to threads, and start your own
- Create reports of your
**campus visits** - Share college
**photos**and**videos** **Find your dream college**, save your search and share with friends- Receive our
**monthly newsletter**

Home
/
College Discussion / College Admissions and Search / SAT and ACT Tests & Test Preparation / SAT Preparation

College Confidential’s “Dean,” Sally Rubenstone, put together 25 of her best tips. So far, the "25 Tips from the Dean" eBook has helped more than 10K students choose a college, get in, and pay for it. Get your free copy: http://goo.gl/9zDJTM

loldanielol
Registered User Posts: **534** Member

Has anyone used this book before, and if so, how did you do on the practice tests and on the real SAT?

Post edited by loldanielol on

## Replies to: Who has used Dr. John Chung's Math SAT book?

16New Member2,526Senior Member25,434Senior Member1,248Senior Member2,526Senior MemberSame with me, I'm just looking for a book that helps target the hardest problems on the SAT because I'm already very good at math and don't need to know how to do coordinate geometry or whatever..

127Junior Member156Junior MemberHere are the first two problems of the first practice test, talk about getting off to a rocky start. Or, maybe I'm just a moron.

1) If a(x+2)+b(x-1) = 3 for all x, then a =

A) -1 B) 0 C) 1 D) 2 E) 3

2) If a+b=2 and ab=-1, then a^2 + b^2 =

A) 4 B) 5 C) 6 D) 8 E) 10

Have fun...

36Junior MemberYou get a^2 + 2ab + b^2 = 4. Use the Commutative Property of Addition to rearange the equation.

a^2 + b^2 + 2ab = 4

You know that ab = -1 so substitute

a^2 + b^2 + 2(-1) = 4

a^2 + b^2 -2 = 4

a^2 + b^2 = 6

As I said this type of problem on the SAT is very common

114Junior Member53Junior Member16New Member81Junior Member2,423Senior Member15New Member