Three numbers whose sum is 15 are in an arithmetic progression. The product of the 1st two numbers is 2 more than the 3rd. Find the three numbers.
Pre-Calculus - PsyDAG, Monday, September 20, 2010 at 11:43am
Designate the three numbers, in order as x, y and z.
xy = z +2 or xy - 2 = z
x + y + z = 15
x = 2, y = 5, z = 8