Question

If a,B are zeros of 2x^2+7x+5, find the value of a+B+aB​

Answer 1

Answer:

-1

Step-by-step explanation:

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