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To find two square numbers that subtract to make 21, we can set up the equation x^2 - y^2 = 21, where x and y are the square roots of the square numbers. This equation can be factored as (x + y)(x - y) = 21. The factors of 21 are 1, 3, 7, and 21, so we can set up different pairs of equations to solve for x and y. The solutions are x = 5 and y = 2, which means 25 - 4 = 21.
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What is 60 subtract 21?
39
What is the sum of the 10th square number and the 14th square number?
sum of 14th square number and 10th square number
What is the range for 14 9 11 21 7?
14. If you have the numbers in order like so: 7,9,11,14,21 you can see that 21 is the greater number. You then subtract 21 from the smallest number, 7, and you get 14.
What is 46 subtract 25?
21
What is a square number greater than 400?
A square number is an integer which is the square of some smaller integer. For example, 144 is square because 144 = 12*12 = 12^2 400 is a square number because 400 = 20^2. Anything bigger than 20, when multiplied by itself, will make a square greater than 400. How about 21?
