The sum of two numbers is 9 and the sum of their squares is 261. How do you find the numbers?
Either 15 and -6 or -6 and 15.
Let one number be x, then other's is 9 - x.
As per questions,
other's number is
Hence numbers are either 15 and -6 or -6 and 15.
Given: Sum of the two numbers is
Given: Sum of the squares is
Use substitution by solving for one variable in the first equation and substituting this variable into the second equation: