Question

find the value of the polynomial p(x) = x^3 +2x^2 +6 at x=2 and x=-1 plz answer this question its urgent.​

Answer 1

$p(x) = {x}^{3} + 2 {x}^{2} + 6 \\ p(2) = {2}^{3} + 2( {2}^{2} ) + 6 \\ = 8 + 8 + 6 = 22 \\ p( - 1) = {( - 1)}^{3} + 2( - 1) {}^{2} + 6 \\ = - 1 + 2 + 6 \\ = 7$