1.

If p (x) =x square-2x-3 ,then find the value of p(3) +p(-1)+p(2)​

Answer»

ANSWER:

- 3

Step-by-step EXPLANATION:

p(x) = {x}^{2} - 2x - 3 \\ \\ p(3) = {3}^{2} - 2(3) - 3 = 9 - 6 - 3 = 0 \\ \\ p( - 1) = {( - 1)}^{2} - 2( - 1) - 3 = 2 + 1 - 3 = 0 \\ \\ p(2) = {2}^{2} - 2(2) - 3 = 4 - 4 - 3 = - 3 \\ \\ now \\ \\ p(3) + p( - 1) + p(2) = - 3 \\ \\

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