Question

what eqluation is valid for all values of its variable​

Answer 1

Step-by-step explanation:

identity

If an equation contains one or more variables and is valid for all replacement values of the variables for which both sides of the equation are defined, then the equation is known as an identity. The equation x 2 + 2 x = x( x + 2), for example, is an identity because it is valid for all replacement values of x.

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Answer 2

Answer:

identity

Step-by-step explanation:

If an equation contains one or more variables and is valid for all replacement values of the variables for which both sides of the equation are defined, then the equation is known as an identity. The equation x 2 + 2 x = x( x + 2), for example, is an identity because it is valid for all replacement values of x.