Question

find the value of polynomial 5X-4X^3whenX=2​

Answer 1

5x-4x^3

5×2-4×2^3

10-4×8

10-32=-22

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Answer 2

Answer:

x(5-4x^2)=0

5-4x^2=0

-4x^2= -5

x^2=5/4

x=√5/4

x=√5/2

Step-by-step explanation:

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