Write an example of an algebraic expression that always has the same value regardless of the value of the variable.

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Mathematics

Giovani Bridges

2 January, 17:16

Write an example of an algebraic expression that always has the same value regardless of the value of the variable.

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Katherine Estrada · Answer 1

An algebraic expression that always has the same value regardless of the value of the variable is called an identity. An identity, in mathematics, is a relation between A and B that would result to an equality of the two. It should be expressed as A = B wherein both values has some variables that would produce the same value no matter what will be the values used for the two functions. An example would be

5 (2x+3) = 9x+15+x

Assuming x would be 1, when we simplify the equation above, both sides would have the same value of 25.

5 (2 (1) + 3) = 9 (1) + 15+1

25 = 25