answersLogoWhite

0

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.

User Avatar

ProfBot

7mo ago

What else can I help you with?