There is a formula for "the difference of squares."
(x + 7)(x - 7) = 0
x = 7, -7
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1.5 to the 2nd power equals 2.25
The number that equals the 2nd power of 49 is the square root of 49. In this case, the square root of 49 is 7, because 7 multiplied by itself (7^2) equals 49. Therefore, the number that equals the 2nd power of 49 is 7.
15 to the 2nd power or 15 squared equals 15 * 15 which equals 225.
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