Determine a root of the following polynomial f(x) using the false-position method.   f(x) = 2.75x3 + 18x2 – 21x – 12   Employ initial guess of xl = 1 and xu = 2 and perform iterations until the approximate error becomes less than 0.5%.

Advanced Engineering Mathematics
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ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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Determine a root of the following polynomial f(x) using the false-position method.

 

f(x) = 2.75x3 + 18x2 – 21x – 12

 

Employ initial guess of x= 1 and x= 2 and perform iterations until the approximate error becomes less than 0.5%.

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