Question

p(x)=2x³+x²-2x-1,g(x)=x+1​

Answer 1

Step-by-step explanation:

$g(x) = x + 1 \\ x + 1 = 0 \\ x = - 1 \\ p(x) = 2x {}^{3} + x {}^{2} - 2x - 1 \\ p( - 1) = 2( - 1) {}^{ 3} + ( - 1) {}^{2} - 2 \times ( - 1) - 1 \\ = 2 \times - 1 + 1 + 2 - 1 \\ = - 2 + 1 + 1 + 2 - 1 \\ = 1 \\ here \: is \: your \: solution$