19 is a prime number, so the prime factorization is 1*19
Subtracting the functions
2,0-1,-2-----(1,-2)
Answer:<em> In mathematics, a square number or perfect square is an integer that is the square of an integer; in other words, it is the product of some integer with itself. For example, 9 is a square number, since it can be written as 3 × 3.</em>
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About anything that adds up to 90...
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#1
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Hope this helps! <3