Evaluating Algebraic Expressions Negative Variable Terms

A combination of variables, numbers, and at least one operation.

• algebraic expression

• mathematical equation

• numerical equation

• terms

Each part of an algebraic expression separated by an addition or subtraction sign.

• Term

• Variable

• Constant

• Coefficient

A number multiplying a variable or product of variables.  For example, −7 is the _____ of −7xy2. * The 2 is y squared.

• Term

• Variable

• Coefficient

• Expression

 In an _____ ______, if each of the following terms, 6xy2, 24, and y−34+x, are combined, the result may be 6xy2+24−y−34+ x.  It does not have an “equals” sign.

• Equation

• Algebraic Expression

• Expression

• Unit Squared

• -10

• 10

• 14

• 2

• -2

• -8

Evaluate the expression
when x=8 and y=12.
4x − 2y 

• 4(8) − 2(12)

• 0

• 8

• 4

The length of a rectangle is represented by (5x - 3) and the width is (x + 3). If x = 2, then which of the following values is the actual perimeter of this rectangle?

• 18

• 14

• 24

• 20

• 15

• 25

• 75

• 5

A number that is not multiplied by a variable.  In the expression 2x+3(5−2x)+8, the number 8 is a ____ term.  The number 3 is not a ____ term, because it is multiplied by a variable inside the parentheses.  

• Equivalent

• Ratio

• Negative

• Constant