32+42=52
9+16=25
You can keep this pattern going, too:
3² + 4² = 5²
6² + 8² = 10²
9² + 12² = 15²
12² + 16² = 20²
And so on and so forth...
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Either 2i or -2i, when squared equal -4.
The answer will depend on the size of the square.
The numbers are: 8 times square root of 15 and 8 times the square of 15
two of the same numbers that are times together will equal that number. example 49 7 x 7 = 49 - no, that's not what the question is asking, everyone should know that. it's like numbers that are like, 349753469576. how would you be able to tell if they're square numbers? - with larger numbers you have to use a calculator. or start multiplying really big numbers together. - then how would you tell without a calculator?