SOLUTION: Try to find a quadratic equation with the roots 2 and 4?

Algebra.Com
Question 93374: Try to find a quadratic equation with the roots 2 and 4?
Answer by Nate(3500)   (Show Source): You can put this solution on YOUR website!
f(x) = (x - r)(x - l)
where r and l are roots
Proof:
Roots are: (r,0) and (l,0)
0 = (r - r)(r - l) = (0)(r - l) = 0
0 = (l - r)(l - l) = (l - r)(0) = 0
roots: r = 2 and l = 4
f(x) = (x - 2)(x - 4) = x^2 - 6x + 8

RELATED QUESTIONS

find a quadratic equation with the roots 2 and 4 thank... (answered by stanbon)
Find a quadratic equation with the given roots: -1/4 and... (answered by stanbon)
Find a quadratic equation with the following roots: 4 and... (answered by nerdybill)
how to write a quadratic equation with the roots 4 and -4 with the coefficient of... (answered by ikleyn)
find a quadratic equation with roots (4+i)and... (answered by longjonsilver)
Find a quadratic equation with roots ( 4 + i ) and (4 - i ).... (answered by scott8148)
Find a quadratic equation with roots (4 + i) and (4 -... (answered by ankor@dixie-net.com)
Find a quadratic equation with roots (4+i) and... (answered by jim_thompson5910)
Find a quadratic equation with roots (4+i) and... (answered by Mathtut,EMStelley)