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Answer:
3) _ 1. is your right answer according to me
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Answer:
(I) 3
Step-by-step explanation:
x²-x+2=0
compare with ax²+bx+c=0
a=1, b =-1 c=2
α+β= -b/a=-(-1)/1=1
αβ =c/a=2/1=2
so
(α+β)+αβ=1+2=3
I think it is helpful for you
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