SOLUTION: The sum of two numbers is 20. If x represents one number and y represents the sum of the squares of the numbers, express y as a function of x.

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Question 1043985: The sum of two numbers is 20. If x represents one number and y represents the sum of the squares of the numbers, express y as a function of x.
Answer by Timnewman(323) About Me  (Show Source):
You can put this solution on YOUR website!
The sum of two numbers is 20. If x represents one number and y represents the sum of the squares of the numbers, express y as a function of x.
Solution
let the second number be m.
X+m=20---a
y=x^2+m^2
from equ (a)
m=20-x ---b
put a in b
y=x%5E2%2B%2820-x%29%5E2
y=x%5E2%2B400-40x%2Bx%5E2
y=2x%5E2-40x%2B400
y=x%5E2-20x%2B200 as required