Question

If alpha and beta are the zero of quadratic polynomial p(x)=x×2-5x+4 find the value of 1/Alfa +1/beta- 2alfa beta​

Answer 1

Here is your answer

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Answer 2

Answer:

Here is your answer

=x²-5x+4

=x²-x-4x+4

=x(x-1)-4(x-1)

=(x-4)(x-1)

x-4=0

x=4

α=4

x-1=0

x=1

β=1

THE ZEROES ARE 4 AND 1

=1/α+1/β-2αβ

=(1/4)+(1/1)-(2×4×1)

=(1/4)+1-8

=(1+4-32)/4

=(5-32)/4

=-27/4