Question

The product of two numbers is 450. The first number is half the second number. which equation can be used to find x, the greater number

Answer 1

xy=450
x=1/2(y)

1/2 (y^2)=450
y^2=900
Answer : y=30 x=15

Answer 2

x^2 - 7x - 450 = 0
(x - 25)(x + 18) = 0
x = 25 Large number
x = 18 Small number
Hope this helps.
:-)