Answers

2015-10-27T20:03:22+05:30
if the value of 'x' = 3
= x^2+kx-10 
⇒ (3)^2+k(3)-10 = 0
⇒ 9+3k-10 = 0
⇒ -1+3k = 0
⇒ 3k= 1
⇒ k= 1/3
 therefore the value of k = 1/3
 i hope that this will help u................^_^
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2015-10-27T20:16:46+05:30
  Given, 3 is the zero of the polynomial
  so, p(3) = 0
 xsquare + k(x) - 10 =0
  3square + 3k-10 = 0
       9     + 3k -10 = 0
    -1 + 3k = 0
       3k = 1
      k = 1/3 
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