Question 1051040
x - y = 8
x = (y+8)
:
the product is 65.
x*y = 65
replace x with (y+8)
y(y+8) = 65
:
y^2 + 8x - 65 = 0
Factor
(y+13)(y-5) = 65
Two solutions
y = -13; then x = -13 + 8 = -5
y = +5; then x = 5 + 8 = +13