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ICSE Class 10 Answered

For the question in factor theorem  3 straight x cubed plus 2 straight x squared minus 19 straight x plus 6 straight x cubed plus straight x squared minus 4 straight x minus 4 How to assume a value for x such that f(x)=0. Is there any method other than trying out 1, -1, 2, -2 etc ?
Asked by Suneel | 22 Sep, 2018, 08:59: AM
answered-by-expert Expert Answer
There is no other method in your syllabus, we have to assume roots to find a root of polynomial.
However we can find roots of a polynomial by using calculus, or by ploting its graph.
Which you will study in higher classes.
Answered by Arun | 26 Sep, 2018, 10:53: AM

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