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Nagaland Class 9 Answered

Find the vaue of k, if x-1 is a factor of p(x) in each of the following cases           Q1. P(x) =x square+x+k  
Asked by Sg900266 | 12 Feb, 2019, 08:12: PM
answered-by-expert Expert Answer

p(x) = x2 + x + k = 0           {since p(x - 1) is a factor}

Therefore p(1) = 1 × 1 + 1 + k = 0

                      = 1 + 1 + k = 0

                      = 2 + k = 0

k = 0 - 2

Therfore k = -2

Answered by Sneha shidid | 12 Feb, 2019, 08:39: PM

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