Algebra (Terms)

Algebraic Expression

by Charles Tanora

Terms in Algebra

​Algebraic Expression: a variable, a constant, or a collection of variables and numbers related by at least a fundamental operation or grouping symbol

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Variable: a symbol that represents an unknown number.

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Constant term: a term in an algebraic expression that does not contain any variables

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​Term: in any algebraic expression separated from another algebraic expression by plus (+) or a minus(-)

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Draw

Encircle all ALGEBRAIC EXPRESSION

Multiple Select

Which of the following expression contain variable?

• 5a²

• x+y

• 8/9

• 7a

• 16 +9x³

Multiple Choice

Is 1 in x + y + 1 a constant term?

• Yes

• No

​3x³

​a² b³

​-5nmz

​

​-9/5m

​

​

​coefficient

​literal coefficient

​3

​1

​-5

​-9/5

​x³

​a² b³

​nmz

​m

Open Ended

In a basketball game, a player was injured and replaced by a team mate .

Since there is a ASF pork is out in the market, chef replaced it chicken, beef or tofu.

what method is applied in these situation that is alos applicable in mathematics

Evaluating Algebraic Expression​

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​Evaluate: x + y, when x= 1 and y= 2

​Step 1: x + y

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​Step 2: substitute the values given in each variables

​ 1 + 2

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​

​Step Perform the indicated operation

​ 3

​Evaluate: 2x + 3y, when x= 1 and y= 2

​Step 1: 2x + 3y

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​Step 2: substitute the values given in each variables

​ 2(1)+ 3 (2)

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​Step Perform the indicated operation

​ 2 + 6= 8

​Evaluate: 2a⁴- 3, when a= 3

​Step 1: 2a⁴- 3

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​Step 2: substitute the values given in each variables

​ 2 (3)⁴ - 3

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​Step Perform the indicated operation. (PEMDAS)

​ 2(3x3x3x3) - 3

​ 2(81) - 3

​ 162-3= 159

​Evaluate: 2ac- 3b², when a= 1, b= 2, c=3

​Step 1: 2ac- 3b²

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​Step 2: substitute the values given in each variables

​ 2(1)(2)- 3(3)²

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​Step Perform the indicated operation. (PEMDAS)

​ 2(1)(2)-3(3x3)

​ 4 -3(9)

​4-27 = -23

Open Ended

Evaluate : 3x - 2y + 4 if x = 2 and y = 4

Open Ended

Evaluate : ab + cd, if a=2, b= -1, c=3, d=-5

Open Ended

Evaluate : b² + a³ +4, where b= 2, a= 2