THE SUM OF TWO NUMBERS IS 8.5 AND THEIR PRODUCT IS 18. FIND THE NUMBERS?
Solve
x + y = 8.5 together with
xy = 18.
Try a substitution method,
y = 18/x
x + 18/x = 8.5
x^2 -8.5x + 18 = 0
(x-4)(x-4.5) = 0
Take it from there
x + y = 8.5 together with
xy = 18.
Try a substitution method,
y = 18/x
x + 18/x = 8.5
x^2 -8.5x + 18 = 0
(x-4)(x-4.5) = 0
Take it from there