Question

Find relations between coefficients and zeroes of x³-5x²-4x+4​

Answer 1

Answer:

x

3

++4x

2

−5x−2

The expression is in the form ax

3

+bx

2

+cx+d,then

a=1,b=4,c=−5,d=−2

∴α+β+γ=

a

−b

=

1

−4

=−4

αβ+βγ+γα=

a

c

=

1

−5

=−5

αβγ=

a

−d

=

1

−(−2)

=2

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