Question

$classify (7 + \sqrt{5} ) - \sqrt{5}as rational and irrational$



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Answer 1

Answer:

it is a rational number because 7 is rational.

Step-by-step explanation

+$(7+\sqrt{5}) -\sqrt{5} \\7+\sqrt{5} -\sqrt{5}\\+\sqrt{5} \:\: and -\sqrt{5}\:\: get\:\: cancelled\\=7$