math
posted by julissa .
Write a quadratic equation having the given number as solutions:
c/2 and d/2

please help me solve

I will use x as my variable
if x = c/2 then 2xc = 0
if x = d/2 then 2xd = 0
your quadratic equation would be
(2xc)(2xd) = 0
expand it to get it into general form
OR
sum of roots = c/2 + d/2 = (c+d)/2
product of roots = cd/4
equation: x^2  (c+d)/2 x + cd/4 = 0 or
4x^2  (c+d)x + cd = 0 
last line should read:
4x^2  2(c+d)x + cd = 0