Question

example for the formula

${x}^{2} - ( \alpha + \beta )x + \alpha . \beta$

Answer 1

suppose the polynomial is  x^{2} +7x+5......
given that its zeroe's sum is -7 and product is 5....
then you can form the polynomial by this equation...that is x^2 - alpha =beta into x+alpha beta.
here alpha + beta =-7 and alpha beta =5
therefore the qeruired polynomial is x^2 +7x+5


hope this helps you..if there is any doubt regarding this...plz ask