How do you simplify (\sqrt{2})(\sqrt{2})(2)(2)?

1 Answer
Sep 27, 2017

22

Explanation:

...because the square root of a number multiplied by itself is the number. Right?

sqrt(9) * sqrt(9) = 3 * 3 = 9.99=33=9.

Likewise, sqrt(2) * sqrt(2) = 222=2.

This is true because the product of two square roots with the same value within them is simply that value.

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An alternative approach is to multiply inside of the radical:

sqrt(2) * sqrt(2)22

sqrt(2*2)22

sqrt(4)4

22

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I hope that helps!