Question

if alpha and beta are the zeros of the polynomial f(x)=x²-4x-5 then find the value of alpha³+beta³ ​

Answer 1

Answer:

26

Step-by-step explanation:

A^2+B^2=(A+B)^2-2AB

A+B=-(-4/1)=4

AB=-5/1=-5

SO 4^2-2(-5)=

16+10=

26

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