Algebraic expressions and terms
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Transcript of Algebraic expressions and terms
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Algebraic Expressions and Terms
Name –Khatun Panchmahal
Roll no -49
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What is Expressions
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Expressions You are familiar with the following type of
numerical expressions:
12+6 3 (12)
6 (3 + 2)15 - 4 (6)
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What is a variable?In the expression 12 + B, the letter “B” is a
variable.
A variable is a letter or symbol that represents an unknown value.
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Algebraic Expressions When variables are used with other
numbers, parentheses, or operations, they create an algebraic expression.
a + 2(a) (b)
3m + 6n - 6
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What are coefficients? A coefficient is the number multiplied
by the variable in an algebraic expression.
Algebraic Expression Coefficient6m + 5 6
8r + 7m + 4 8, 714b - 8 14
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What is a term? A term is the name given to a number, a
variable, or a number and a variable combined by multiplication or division.
Algebraic Expressions Termsa + 2 a, 2
3m + 6n - 6 3m, 6n, - 6
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What are constants?A constant is a number that cannot
change its value.
In the expression: 5x + 7y - 2 the constant is - 2.
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Time for test
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Which is the coefficient in the term 11mn?A.
B.
C.
D.
m
n
11
m,n
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Oops wrong answer
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Correct answer
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Which is the variable in the term 215pq?A.
B.
C.
D.
215
p
Pq
215pq
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Incorrect try again.
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Correct Answer Yippeee…………
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