Question

if alpha and beta are the zero of quadratic polynomial 5 x^ + 2 x -1, then write the value of alpha + beta

Answer 1

Step-by-step explanation:

a = 5, b = 2, c = -1

$\alpha+\beta$ = -b/a

$\alpha+\beta$ = -2/5

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Answer 2

-3/5 is ur answer

Explanation:- alpha+beta=-coefficient of x/coefficient of xsq

= -2/5

alpha×beta=constant term/coefficient of x square= -1/5

alpha+beta+alpha×beta

= -2/5+ -1/5

=-3/5

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