The expression that represents the age of the oldest child is x +5
Integers are whole number and can be negative or positive. For instance, 1,2, 3, -5 are al integers.
Fractions cannot be an integers. From the question, we are told that the ages of the three children are three consecutive even integer. If the youngest child is represented by x + 3, the the others will be determine by simply adding 1 to each term
Middle child = x + 3 + 1
Middle child = x + 4
Oldest child = x + 4 + 1
Oldest child = x + 5
Hence the expression that represents the age of the oldest child is x +5
Learn more on consecutive integers here: https://brainly.com/question/841485
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