Question

Write a quadratic equation of which the product of roots is 15 and sum of roots is 0

Answer 1

given sum of roots is -6... and product of roots is 8........ 
therefore......... 
follow the formula.... 
x^2 - (sum of roots)x + (product of roots) = 0 
then... just substitute the number given into the formula... 
x^2 - (-6)x + (8) = 0 
x^2 + 6x + 8 = 0