Cracking The SAT Premium

So, at least one of the factors must equal 0. If x + 1 = 0, then x = −1. If x + 3 = 0, then ...

Let’s put your quadratic skills to work with a problem you may see on the SAT. 12.What is the product of all ...

So x = 2 + or 2 – . “Product” means to multiply, so use FOIL to multiply (2 + ) × (2 ...

Imaginary Numbers An imaginary number, very simply, is the square root of a negative number. Since there is ...

(–5 + 6i) – (2 + 4i) Distribute the negative sign to both terms in the second set of parentheses to get ...

B) 2 – C) D) 28 – 14 Multiplying by One (in Disguise) In order to keep a fraction the same, you must multi- ...

There is still an i in the denominator, but you can get rid of it. Since i = , i^2 = –1, so substitu ...

B) –4 C) –2 D) 14 Here’s How to Crack It To solve the first equation, set x + 3 = 6 and set x + 3 = ...

Algebra Drill 1: No Calculator Section Work these questions without your calculator using the skills ...

14. rx^2 = x + 3 A quadratic equation is provided above, where r and s are constants. What are th ...

Algebra Drill 2: Calculator-Permitted Section Work these questions using your calculator as needed and ...

D) 11 16 .How many solutions exist to the equation |x| = |2x − 1| ? A) 0 B) 1 C) 2 D) 3 25 .The sum of three ...

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CHAPTER DRILL ANSWERS AND EXPLANATIONS Algebra Drill 1: No Calculator Section 5. C Start by multiplying the second ...

– 14i^2 . Simplify the result by multiplying through where you can to get 2 – 8i + i – 14i^2 . To combine t ...

7. B To solve this equation, use cross multiplication to get (2x)(x + 2) = (x^2 + 1)(2). Expand the equa ...

Summary ◦ Don’t “solve for x” or “solve for y” unless you absolutely have to. (Don’t worry; your math teacher ...

◦ When solving for the sum or product of the roots, you can also use these formulas: ◦ sum of the roots: – ◦ pro ...

Chapter 13 Other Algebra Strategies Now that you’re familiar with the basics of algebra, it’s time to ...

PRINCETON REVIEW ALGEBRA, OR HOW TO AVOID ALGEBRA ON THE SAT Now that you’ve reviewed some basic algebra, ...