Question

if alpha and beta are zeros of x square + 5 x + 5 find the value of one by alpha + 1 by beta minus two alpha beta​

Answer 1

Answer:

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Answer 2

Answer:

f(x)=x

2

+5x+5

Comparingfromtheabovepolynomial

wegeta=1,b=5,c=5

So,Sumofzeros=α+β=

-b/a

=5

Productofzeros=αβ=

c/a

=5

valueofα^−1

+β^−1

=

1/α

+

1/β

=

β+α/αβ

=

−5/5

=-1