This math skill teaches how to find a number 'D' that, when squared, equals a given value. The method involves testing different numbers to see which one, when squared, matches the specified value.
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Perfect square as an equation
Test your understanding of perfect square as an equation by practicing it! Work through the below exercises to use it in practice.
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If 'D' squared is 9, what is 'D'?
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We need a number that we can square to get 9. 2 squared is only 4, so that's too small
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4 squared is 16, so that's too large
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3 squared is 9, so 'D' must be 3