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Seven squared = 7 x 7 = 49
10
-7 squared, which would be -49.
9t2 + 42t + 49 is a perfect square, equal to (3t + 7)2
To find out how much greater 8 squared (64) is than 7 squared (49), you simply subtract 49 from 64, which equals 15. Therefore, 8 squared is 15 greater than 7 squared.