Easy to figure out by looking at the factors of 20
1x20
2x10
4x5
which have a difference of 8 ??
formal way:
let one number be x
let the other be x+8
x(x+8) = 20
x^2 + 8x - 20 = 0
(x+10)(x-2) = 0
x = -10 or x = 2
if x = 2, the numbers are 2 and 10
if x = -10, the number are -10 and -2
A number is 8 more than another number.If the product of the two numbers is 20.Find the numbers.
1 answer