Wednesday

January 28, 2015

January 28, 2015

Posted by **julissa** on Tuesday, February 3, 2009 at 10:15pm.

c/2 and d/2

- math -
**julissa**, Tuesday, February 3, 2009 at 10:15pmplease help me solve

- math -
**Reiny**, Tuesday, February 3, 2009 at 10:28pmI will use x as my variable

if x = c/2 then 2x-c = 0

if x = d/2 then 2x-d = 0

your quadratic equation would be

(2x-c)(2x-d) = 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

- CORRECTION math -
**Reiny**, Tuesday, February 3, 2009 at 10:30pmlast line should read:

4x^2 - 2(c+d)x + cd = 0

**Answer this Question**

**Related Questions**

Math - Write a quadratic equation having the given number as solutions -7 and -4...

Math - Write a quadratic equation having the given numbers as solutions. -5 and...

Math - Solve the given quadratic equation exactly using the quadratic formula. ...

Math - Solve the given quadratic equation exactly using the quadratic formula. ...

college - Write a quadratic equation in the variable x having the given numbers ...

algabra - Write a quadratic equation in the variable x having the given numbers ...

Math, plz help - How do I write a quadratic equation having the given numbers as...

Quadratic -Make up a problem - I am supposed to write a quadratic equation in ...

math!HELP!! - write a quadratic equation in the variable x having the given ...

College Algebra - Write a quadratic equation having the given solutions 14 and -...