Question

if a and b are roots of x2+ax+b, then find the value of a and b

Answer 1

Answer:

$a = 1 \: and \: b \: = - 2$

Step-by-step explanation:

sum ofroots of quadratic equation is = - (coefficient of x)/(coefficient of x^2)

a+b = -(a) / 1

b = -2a

product of roots of quadratic equation is = (constant term)/(coefficient of x^2)

ab = b

a=1 (when b not equals 0)

b=-2a

b=-2

a=1 and b=-2