Which value equals the fourth root of 625?

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Multiple Choice

Which value equals the fourth root of 625?

Explanation:
Taking the fourth root means finding a number that, when raised to the power of four, returns the original number. Here, 5 raised to the fourth power equals 625 because (5^2)^2 = 25^2 = 625. So the fourth root of 625 is 5. You can also verify by successive square roots: sqrt(625) = 25, and sqrt(25) = 5. The other options don’t fit because they produce 16, 390,625, or an even larger value when raised to the fourth power, rather than 625.

Taking the fourth root means finding a number that, when raised to the power of four, returns the original number. Here, 5 raised to the fourth power equals 625 because (5^2)^2 = 25^2 = 625. So the fourth root of 625 is 5. You can also verify by successive square roots: sqrt(625) = 25, and sqrt(25) = 5. The other options don’t fit because they produce 16, 390,625, or an even larger value when raised to the fourth power, rather than 625.

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