Question

if alpha beta are the zeros of the polynomial x square minus x minus 4 then the value of alpha + beta + alpha beta equal to​

Answer 1

Answer:

α+β= -1

αβ=4

then (α+β)+αβ= -1+4

=3 answer

Answer 2

α + β +  1/α  + 1/β = 3/4 if α & β are zeroes of x² - x - 4

Step-by-step explanation:

Correct Question is

if α & β are zeroes of x² - x - 4

Then value of α + β +  1/α  + 1/β = ?

α & β are zeroes of x² - x - 4

α + β  = 1

αβ  = -4

1/α  + 1/β

= (β + α)/αβ

= 1/(-4)

= -1/4

1/α  + 1/β =  -1/4

α + β +  1/α  + 1/β

= 1 - 1/4

= 3/4

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