Question

Find the sum of the zeroes of the quadratic polynomial...

Answer 1

Answer:

let p(x)= 2x^2-1x-15

let alpha (a) and Bita( B) be the zeros of a quadratic polynomial p(x)

we know that sum of zeros = alpha + Bita

:- -b/a= -(-1/2) =( a+B) alpha + Bita

. -b/a= 1/2

sum of zeros = 1/2

Answer 2

Answer:

1/2

Step-by-step explanation:

Consider Given quadratic equation is 2x² - 1x - 15 = 0

it is in the form of ax² + bx + c = 0

let α, β be the zeroes of the quadratic polynomial.

then sum of the roots of a quadratic equation is

α + β = -b/a from the given equation, a = 2, b = -1

the sum of the roots or zeros = -(-1)/2

=> sum of the roots or zeros = 1/2