Question

find the value of
Polynomial if
p(×)=ײ+2×-3
find p(1),p(-2),p(0),p(1)​

Answer 1

p(x) = x² + 2x - 3

p(1) :

Put x = 1,

p(1) = 1² + 2(1) - 3

      = 1 + 2 - 3

      = 3 - 3

      = 0

p(-2) :

put x = -2,

p(-2) = (-2)² + 2(-2) - 3

       = 4 - 4 - 3

       = 0 - 3

       = -3

p(0) :

put x = 0,

p(0) = 0² + 2(0) - 3

       = 0 + 0 - 3

       = -3

p(1) :

put x = 1,

p(1) = 1² + 2(1) - 3

      = 1 + 2 - 3

      = 3 - 3

     = 0