Question

if alpha and beta are the zeros of polynomial f( x )=x²- 9x + 1 then find the value of (alpha + 1) ( beta + 1) ​

Answer 1

Step-by-step explanation:

$(1 + \alpha )(1 + \beta ) \\ = 1 + \alpha + \beta + \alpha \beta \\ = 1 + ( - ( - 9)) + (1) \\ = 1 + 9 + 9 = 11$

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