Question

find the value of p (-2) when p (X) = 2xsq-3x-5

Answer 1

Answer:

$p( - 2) \\ \\ p(x) = 2 {x}^{2} - 3x - 5 \\ \\ p( - 2) = 2( { - 2})^{2} - 3 \times ( - 2) - 5 \\ \\ \\ = > 8 + 6 - 5 \\ \\ \\ = > 14 - 5 = 9$

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Answer 2

p(-2) = 2x²-3x-5

         = 2*-2²-3*-2-5

         = 2*4+6-5

       =8+6-5

   = 14-5

 = 9

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