Question

if alpha beta are roots of x²-x+2=0, then alpha +beta+(alpha beta) is​

Answer 1

Answer:

alpha +beta is 1

Step-by-step explanation:

compare

ax²+bx+c to given equation

a=1

b= -1

c=2

now alpha +beta = -b/a

(this is a formula)

therefore, -(-1)/1=1

and alpha ×beta =c/a=2/1=2

now final answer is 1+2

3

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