Question

Sum of two numbers is 16 and their product is 24

Answer 1

x+y=16
x=16-y ------------(1)
x*y=24 ----------------(2)

Sub (1) into (2)

(16-y)*y=24
-y^2+16y-24=0
y^2-16y+24=0

by using quadratic formula y=$\frac{-b+- \sqrt{b^2-4ac}}{2a}$
y=14.32 or y=1.675
when y=14.32
x=16-14.32
x=1.68 

when y=1.675
x=16-1.675
x=14.325