Seven squared = 7 x 7 = 49
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when 144 is squared it is the same as 12
42
3.8729833462074168851792653997824
1000.
2.645 squared equals 7. Save --------- Unclear what you're asking: If x=7, then x^2 (that is, "x squared") equals 49. or If x^2=7, then x equals the square root of 7, or about 2.64575