Study Guides

21.
Rewriting a Subtraction Problem as an Addition Problem Help
Rewriting a Subtraction Problem as an Addition Problem Sometimes in algebra it is easier to think of a subtraction problem as an addition problem. One advantage to this is that you can rearrange the terms in an addition problem but not a ...
Source: McGrawHill Professional 
22.
Multiplication and Division with Negative Numbers Help
Introduction to Multiplying and Dividing Negative Numbers When taking the product of two or more quantities when one or more of them is negative, take the product as you ordinarily would as if the negative signs were not there. Count the ...
Source: McGrawHill Professional 
23.
Algebra Negative Numbers Practice Test
Review the following concepts if needed: Negative Numbers Help Rewriting a Subtraction Problem as an Addition Problem ...
Source: McGrawHill Professional 
24.
Exponents and Roots Help
Exponents The expression 4 x is shorthand for x + x + x + x , that is x added to itself four times. Likewise x 4 is ...
Source: McGrawHill Professional 
25.
Adding/Subtracting Fractions with Variables and Exponents Help
Adding/Subtracting Fractions with Variables and Exponents When adding fractions with variables in one or more denominators, the LCD will have each variable (or algebraic expression) to its highest power as a factor. For example, the LCD for ...
Source: McGrawHill Professional 
26.
Multiplying/Dividing with Exponents Help
Introduction to Multiplying and Dividng with Exponents When multiplying (or dividing) quantities that have exponents, use the exponent properties to simplify each factor (or numerator and denominator) then multiply (or divide).
Source: McGrawHill Professional 
27.
Roots Help
Introduction to Square Roots The square root of a number is the nonnegative number whose square is the root. For example 3 is the square root of 9 because 3 2 = 9.
Source: McGrawHill Professional 
28.
Roots Expressed as Exponents Help
Properties of Roots Expressed as Exponents Roots can be written as exponents by using the following two properties. This ability is useful in algebra and calculus. Property 1
Source: McGrawHill Professional 
29.
Algebra Exponents and Roots Practice Test
Review the following concepts if needed: Exponents and Roots Help Adding/Subtracting Fractions with Variables and Exponents ...
Source: McGrawHill Professional 
30.
Distributing Multiplication over Addition and Subtraction Help
Distributive Property  Multiplication Over Addition and Subtraction Distributing multiplication over addition (and subtraction) and factoring (the opposite of distributing) are extremely important in algebra. The distributive law of ...
Source: McGrawHill Professional