Math, asked by anshbartwal101, 7 months ago

plz help me class 9

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Answered by samriddhiverma154

2

Answer:

(I) x+a=0

x=-a

(-a)^3+a(-a)^2-2(a)+a+4

-a^3+a^3-a+4

-a+4=0

a=4

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