Question #91a47
1 Answer
Dec 6, 2017
9 and 7.
Explanation:
Sum of their squares is 130.
Given: x + y = 16 (1)
x^2 + y^2 = 130 (2)
Square both sides of (1)
x^2 + 2xy + y^2 = 256
Substituting values from (2)
130 + 2xy = 256
2xy = 126
xy = 63
Solving for xy, since 9 * 7 is 63, your numbers are 9 and 7.
