Math, asked by sarthaksurange, 1 year ago

2 x cube+x square-5x+2 ;1/2,1,-2.verify that given numbers are zeroes of cubic polynomial.also verify the relation between zeros and coefficients

Answers

Answered by priyanka8
1
consider the equation as p(x) = 2x3 + x2- 5x +2 and g1(X) = 1/2 , g2(x) = 1 and G3(x) = -2                                                                                                                      now put the x value in the p(x)                                                                                           p(x) = 2.( 1/2) 3 + ( 1/2)2 - 5 . 1/2 +2                                                                                     =  2.(1/8) 3 + ( 1/4) - 5 .1/2 +2                                                                                       =   5/2 . ( it is not a zero of the polynomial)                                                       now continue the same method in above two cases.                                                                                 

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