Question

alfa , Bita are roots of y2 - 2y - 7 = 0 find,
(1) a2 + B2 (2) a3 + B3​

Answer 1

Answer:

Alfa+bita =-b/a ,alf*bita =c/a

Alfa+bita =-(-2)=2 , Alf*bita= -7

Step-by-step explanation:

(2)^2-(7)^2 =-45

if u know the formula of alfa^3+bit^3 then u can put this value in it

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