Painless Algebra Book

	Introduction	v
Chapter 1	A Painless Beginning	1
	Mathematical Operations	5
	Zero	16
	Order of Operations	19
	Properties of Numbers	24
	Number Systems	28
Chapter 2	The Integers	35
	What Are the Integers?	37
	Which Is Greater?	42
	Adding Integers	46
	Subtracting Integers	50
	Multiplying Integers	55
	Dividing Integers	58
	What Sign Is the Answer?	61
	Word Problems	63
Chapter 3	Solving Equations with One Variable	69
	Defining the Terms	71
	Solving Equations	73
	Solving More Equations	83
	Word Problems	90
Chapter 4	Solving Inequalities	101
	Graphing Inequalities	107
	Solving Inequalities	113
	Word Problems	122
Chapter 5	Exponents	131
	Multiplying Exponents with Coefficients	138
	Adding and Subtracting Exponential Expressions	141
	Multiplying Exponential Expressions	144
	Dividing Exponential Expressions	147
	Raising to a Power	150
	Negative Exponents	152
	Word Problems	156
Chapter 6	Roots and Radicals	163
	Square Roots	165
	Cube Roots and Higher	169
	Negative Radicands	174
	Radical Expressions	178
	Word Problems	197
Chapter 7	Quadratic Equations	205
	Solving Quadratic Equations by Factoring	214
	The Quadratic Formula	236
	Word Problems	245
Chapter 8	Solving Systems of Equations	251
	Solving Linear Equations by Addition or Subtraction	254
	Solving Linear Equations by Substitution	267
	Solving Linear Equations by Graphing	272
	Word Problems	286