Question

If alfa and beeta are the Zeroes of the Polynomial 2x²+7x+5, write the value of alfa+beeta+alfa×beeta.​

Answer 1

Answer:

Step-by-step explanation:

Given: α and β are the zeros of polynomial 2x2 + 7x + 5 α + β = Sum of zeros = -(coefficient of x)/(coefficient of x2) = -7/2 αβ = Product of zeros = (constant term)/(coefficient of x2) = 5/2 α + β + αβ = (α + β) + αβ  = -7/2 + 5/2  = -1