Question

b. P(x)= x3-2x2-8x-1, g(x)= x+1​

Answer 1

Answer:

p(x) = x^3-2x^2-8x-1

p(-1) = -1^3-2×(-1)^2-8×(-1)-1

= -1-2+8-1

= 12

Answer 2

Answer:

P(x)= x3-2x2-8x-1, g(x)= x+1

$= > g(x) = x + 1 \\ = > g(x) = - 1$

$p(x) = {x}^{3} - 2 {x}^{2} - 8x - 1 \\ = > p( - 1) = ( {1})^{3} - 2( {1})^{2} - 8(1) - 1 \\ = > \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 1 - 2 - 8 - 1 \\ = > \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 4$