Question

if alpha and beta are the roots of a x square minus bx + c = 0 then calculate alpha + beta​

Answer 1

$Let \: p(x) \: be \: ax {}^{2} - bx + c \\ \\ Given : \\ \alpha \: and \: \beta \: are \: the \: roots \: of \: given \: p(x) \\ \\ Now,\\ \alpha + \beta = \frac{ - x \: coeffiecient}{x {}^{2} \: coefficient} = - \frac{ - b}{a} = \frac{b}{a}$

Answer 2

Answer:

Step-by-step explanation:

alpha + beta = -(-b)/a

alpha + beta = b/a