Answer :
let p(x) = 3π₯3 β 4π₯2 + 7π₯ β 5
Putting x= 3 in given polynomial p(x)
P(3) = 3 Γ 33 β 4 Γ 32 + 7 Γ 3 β 5 = 61
Similarly p( β 3) = 3 Γ β 33 β 4 Γ ( β 3)2 + 7 Γ ( β 3) β 5 = β 143
The value of given polynomial at x= 3 and β 3 is 61 and β 143 respectively.
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