By Cynthia Y. Young

**Read Online or Download Algebra & Trigonometry PDF**

**Similar popular & elementary books**

**Higher algebra: a sequel to Elementary algebra for schools**

This Elibron Classics ebook is a facsimile reprint of a 1907 version via Macmillan and Co. , restricted, London. 4th variation

**Schaum's outline of theory and problems of precalculus**

If you would like best grades and thorough knowing of precalculus, this robust examine device is the simplest teach you could have! It takes you step by step in the course of the topic and provides you greater than six hundred accompanying comparable issues of totally labored recommendations. you furthermore may get lots of perform difficulties to do by yourself, operating at your personal pace.

**Numerical Methods Real Time and Embedded Systems Programming**

Mathematical algorithms are crucial for all meeting language and embedded process engineers who advance software program for microprocessors. This publication describes ideas for constructing mathematical workouts - from easy multibyte multiplication to discovering roots to a Taylor sequence. All resource code is obtainable on disk in MS/PC-DOS layout.

- A History of Elementary Mathematics
- Maths: The Basic Skills
- Functions Modeling Change: A Preparation for Calculus (4th Edition)
- Basic College Mathematics: A Real-World Approach

**Additional info for Algebra & Trigonometry**

**Example text**

23 # 1 (-6)-2 Solution: 1 = 24 a. 2-4 = 1 = 3-3 c. 4-3 # 1 1 33 = 1 , a 3b = 1 # = 33 = 27 1 1 3 a 3b 3 1 1 16 = 3 # 24 = = 64 2-4 4 d. - 23 # 1 4 1 = - 23 # (- 6)2 = (- 8)(36) = (-6)-2 Ϫ8 36 ■ YO U R T U R N u b. qxd Evaluate the expressions. a. - 1 5-2 b. 1 # -2 6 3-2 - 288 ■ Answer: a. Ϫ25 b. qxd 8/7/12 20 5:34 PM Page 20 C H A P T E R 0 Prerequisites and Review Now we can evaluate expressions involving positive and negative exponents. How do we evaluate an expression with a zero exponent? We deﬁne any nonzero real number raised to the zero power as 1.

In algebra, however, numbers are often represented by letters (such as x and y), which are called variables. A constant is a ﬁxed (known) number such as 5. A coefﬁcient is the constant that is multiplied by a variable. Quantities within the algebraic expression that are separated by addition or subtraction are referred to as terms. Algebraic Expression DEFINITION An algebraic expression is the combination of variables and constants using basic operations such as addition, subtraction, multiplication, and division.

Solution: (3x)(2x) ϭ 6x2 Multiply the ﬁrst terms. Multiply the outer terms. (3x)(Ϫ5) ϭ Ϫ15x Multiply the inner terms. (1)(2x) ϭ 2x (1)(Ϫ5) ϭ Ϫ5 Multiply the last terms. Add the ﬁrst, outer, inner, and last terms, and identify the like terms. (3x + 1)(2x - 5) = 6x2 - 15x + 2x - 5 ϭ 6x2 Ϫ 13x Ϫ 5 Combine like terms. ■ YO U R T U R N Multiply (2x Ϫ 3)(5x Ϫ 2). qxd 32 8/3/12 11:17 AM Page 32 C H A P T E R 0 Prerequisites and Review Some products of binomials occur frequently in algebra and are given special names.